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四年级整数简便运算专项练习600题(37页)

试卷简介

这套试卷包含了600道与整数简便运算相关的题目,涵盖加减乘除等基本运算。试题难度适中,适合小学高年级学生进行自我检测和提高。每道题都提供了详细的答案,有助于学生理解解题过程。

所涉及的知识点

整数简便运算是小学数学中的重要组成部分,主要涉及加法、减法、乘法和除法的快速计算方法。通过大量练习可以提升学生的计算速度和准确度。

整数简便运算专项练习600题(有答案)

(1)25×125×4×8,

(2)2005×2004÷4,

(3)55×66÷(11×11),

(4) 25×(19+19+19+19),

(5)99×99+99,

(6)37×39﹣29×37,

(7)18÷27÷6×27,

(8)586×124+29×586﹣586×53,

(9)

28×5+2×4×35+21×20+14×40+8×62,

(10)125×32,

(11)2008×99+2008,

(12)77﹣75+23﹣25,

(13)125×88,

(14)2011×99+2011,

(15)49﹣75+151﹣25,

(16)(125+9)×8,

(17)3.67×25×4,

(18)28+53l+72+469,

(19)49×102﹣2×49,

(20)833﹣243﹣457,

(21)41000÷(41×5),

(22)4200÷25,

(23)280×36﹣360×18,

(24)5400÷(50×27),

(25)45×45+45×55

(26)37×41﹣37

(27)162+89﹣62

(28)71×25+71×76,

(29)125×32×25,

(30)398+167+102+333,

(31)1400﹣386﹣614,

(32)794﹣198,

(33)68×25,

(34)6756﹣193﹣207,

(35)72×125,

(36)97×360+3×360,

(37)44×25,

(38)1000﹣525+125,

(39)402﹣27+198,

(40)39+261+61,

(41)2010×9+2010,

(42)257﹣65+43+165,

(43)32×25×125,

(44)384+196+216+104,

(45)8×(125+25)×4,

(46)78×57﹣78+78×43,

(47)(6+8)×125

(48)726+53+74﹣353

(49)735﹣248﹣152

(50)4500÷4÷25

(51)32×27+73×32,

(52)1260﹣432﹣568,

(53)25×62×4,

(54)125×88,

(55)17×243+17×56+17,

(56)25×32×125,

(57)125×32×25,

(58)132×77+22×132+132,

(59)1139﹣(350+139),

(60)1170÷9÷13,

(61)98+376+2,

(62)25×97×4,

(63)137×38+63×38,

(64)300÷25÷4,

(65)125×(80+8),

(57)872﹣354﹣246,

(57)25×64×4,

(58)72×102﹣2×72,

(59)1002﹣5+98,

(60)569+68+132+31,

(61)38×25×4,

(62)2300﹣165﹣35,

(63)125×(8+4),

(64)3200÷25÷4,

(65)23×32+68×23,

(66)25×204,

(67)56×32﹣46×32,

(68)8+2﹣8+2,

(69)25×4÷25×4,

(70)726﹣(526﹣150),

(71)286+198,

(72)314﹣202,

(73)526+301,

(74)223﹣99,

(75)98×58+58+58,

(76)415﹣176﹣24,

(77)829+37+71+63,

(78)125×89×8,

(79)428×78+572×78,

(80)101×92﹣92,

(81)907×99+907,

(82)274+299+201+326,

(83)65×99+65,

(84)38×42+38×58

(85)415﹣176﹣24,

(86)829+37+71+63,

(87)125×89×8,

(88)428×78+572×78,

(89)250+255+260+265+270,

(90)1041﹣(41+328),

(91)125×54﹣46×125,

(92)99+99×99,

(93)329﹣186﹣14,

(94)25×37×4,

(95)720÷16÷5,

(96)403﹣198﹣2,

(97)76+149+24,

(98)154﹣(54+98),

(99)37×64+37×136,

(100)216+305,

(101)25×32,

(102)47+236+64,

(103)6×(15×9),

(104)402+539,

(105)43+78+122+257,

(106)25×(26×4),

(107)25×44,

(108)354+(229+46),

(109)(125+7)×8,

(110)327+64+273+46,

(111)645﹣58﹣142,

(112)332×4+68×4,

(113)135﹣87+65﹣13,

(114)15×4×25,

(115)1992+144﹣992,

(116)78×101,

(117)69+11﹣69+11,

(118)25×64×125

(119)107×73﹣7×73

(120)39×101,

(121)75×299+75,

(122)720÷16÷5,

(123)456+328+672+44,

(124)57×101,

(125)87×99+87,

(126)84×72+84×29+84,

(127)6240﹣3885﹣1115,

(128)25×13×4,

(129)99×36+36,

(130)351+188+12,

(131)88×125,

(132)720÷16÷5,

(133)317×15﹣17×15,

(134)(125+7)×8,

(135)3200÷25÷4,

(136)327+64+273+46,

(137)639﹣58﹣142,

(138)25×137×40,

(139)4200﹣1934﹣1066,

(140)290×54+29×460,

(141)46×102+308,

(142)25×137×4,

(143)38×101,

(144)68×200×25,

(145)101×87﹣87,

(146)56×67+33×56,

(147)9+498+102+211,

(148)1305+1238﹣405,

(149)2452﹣(75+452),

(150)245﹣65﹣35,

(151)186+82+18,

(152)25×(4×97),

(153)8×(25+20),

(154)24×56+44×24,

(155)700÷4÷25,

(156)39×49+39×51,

(157)108×25,

(158)25×125×2×4,

(159)56×99+56,

(160)

124×75﹣124×72﹣124×2,

(161)104×39﹣39×4,

(162)28×99+28

(163)(125×39)×8

(164)6958+1998,

(165)(81+108)÷27,

(166)3254﹣599﹣254,

(167)26×8×125,

(168)4200÷15÷2,

(169)25×33×4,

(170)25×29×4,

(171)598×101,

(172)125×48,

(173)105×32,

(174)4×43×25,

(175)109+127+73,

(176)608﹣154﹣146,

(177)165﹣97,

(178)258+98,

(179)109+127+73,

(180)608﹣154﹣146,

(181)165﹣97,

(182)258+98,

(183)36×64﹣64+64×65,

(184)24×125×7,

(185)25×(24+8)×125,

(186)438﹣298,

(187)25×37×8,

(188)4800÷16÷5,

(189)816﹣285﹣15,

(190)37×101﹣37,

(191)2563﹣79+437,

(192)768﹣273﹣27

(193)165+247+135

(194)198+355

(195)243﹣(43+26)

(196)45+63+37+55,

(197)520﹣425﹣75,

(198)8×(11×125),

(199)525×99+525,

(200)3900÷25÷4,

(201)275+364+636+725,

(202)1578﹣(61+578)﹣139,

(203)9999×2010+2010

(204)456+123+544+877

(205)225×48+775×48

(206)25×33×4×2,

(207)156+62﹣156+62,

(208)700﹣296﹣104,

(209)45+99×99+54,

(210)8×4×(125+25),

(211)25×(4×40),

(212)47×16+63×16,

(213)201×42﹣42,

(214)6854﹣(893+854+107),

(215)28×19×25,

(216)327×99,

(217)54000÷8÷125,

(218)194+59+41+106,

(219)383﹣(183+29),

(220)24×125,

(221)156+45﹣55,

(222)1300÷25÷4,

(223)5127﹣866﹣134,

(224)75+127+25+63,

(225)363×7+237×7,

(226)4300÷25÷4,

(227)25×7×44,

(228)327+64+273+46,

(229)750﹣326﹣144,

(230)278+598+122,

(231)647﹣289﹣111,

(232)287+198,

(233)357+256+1000,

(234)49×102﹣2×49,

(235)1563+254+437+746,

(236)25×64×125,

(237)43000÷(43×5),

(238)1736÷28+1064÷28,

(239)168×25×4,

(240)32×87+13×32,

(241)1126﹣637﹣463,

(241)(101﹣98)×44÷12,

(242)43×99+43

(243)1270﹣538﹣462

(244)577+492+423+508

(245)48×125

(246)32000÷125

(247)107+538+462

(248)54×45+45+45×45

(249)125×(25×32 )

(250) 153×43﹢43×47,

(251)101×16,

(252)125×5×8×2,

(253)39+144+61,

(254)27×4×5,

(255)857﹣318﹣182,

(256)25×77﹣37×25,

(257)125×7×32,

(258)124+38+76+62,

(259)222﹣56﹣44,

(260)16×125,

(261)534+262+66+138,

(262)99×165+165,

(263)29×8×125,

(264)8×(125+12),

(265)1428﹣544﹣456,

(266)250×60,

(267)630÷35÷2,

(268)125×16,

(269)800÷32,

(270)25×36,

(271)810÷54,

(272)55×14,

(273)179+54+321,

(274)13×14×125×2,

(275)1525﹣31+75﹣49,

(276)115×23﹣23×15,

(277)23×199+23,

(278)72×5+72×4+72,

(279)34×72+34×28,

(280)203×99,

(281)(80+4)×25,

(282)125×7×8,

(283)27×45+55×27,

(284)728﹣155﹣328,

(285)463+342+158,

(286)873﹣322+278,

(287)1234﹣773﹣327,

(288)111×9+111,

(289)25×294×4,

(290)4000÷125÷8,

(291)18×45+18×55,

(292)239+144+61

(293)728﹣155﹣328,

(294)463+342+158,

(295)873﹣322+278,

(296)1234﹣773﹣327,

(297)111×9+111,

(298)24×125,

(299)114+48+86+52,

(300)469×5×2,

(301)720÷15÷4,

(302)3288﹣1999+212,

(303)769×101﹣769,

(304)39000÷60÷50,

(305)96×125×7×24,

(306)1795+376+624﹣595,

(307)102×79﹣79×2,

(308)25×404,

(309)628﹣46+454,

(310)(80﹣1)×125,

(311)(49+49+49+49)×250,

(312)45×54+45×45+45,

(313)324+67+76,

(314)34×27+66×27,

(315)99×52+52,

(316)(125+9)×8,

(317)3.27+6.4+2.73+4.6,

(318)3200÷25÷4,

(319)137×13+137×6+137,

(320)450×34+45×660

(321)827﹣98﹣102,

(322)378+169+22,

(323)475﹣197,

(324)188+97+12,

(325)235+36+45,

(326)372+89+38,

(327)464+28+36,

(328)597+24+3,

(329)682﹣55﹣27,

(330)725×23×4,

(331)8125×16,

(333)932×25×25,

(334)325+325+325+324,

(335)125×24,

(336)1200÷25,

(337)908×11﹣908,

(338)329×99+329,

(339)12150÷45﹣7650÷45,

(340)27+979+1973+9021,

(341)1358-(442+358)+622,

(342)25×58+25+25×41,

(343)101×15+358,

(344)104×45÷52,

(345)25×(40×6),

(346)532×76÷38,

(347)173×8÷173×8,

(348)28×25+375÷25,

(349)4260÷60×104,

(350)796×3+584,

(351)25×319×4,

(352)99×52,

(353)250×28,

(354)630÷35÷2,

(355)52×72+52×29﹣52,

(356)243+26+274,

(357)35.24﹣(15.24+8.16),

(358)354﹣99,

(359)83×5+83×2+83×3,

(360)43×202,

(361)185×38+15×38,

(362)160×25,

(363)420÷[(205﹣198)×4],

(364)96×101﹣96,

(365)2000﹣586﹣114,

(366)55×25+25×45,

(367)(40+4)×25,

(368)540÷12÷5,

(369)77×13﹣13×27,

(370)104×32,

(371)282+142+158,

(372)577+204,

(373)45×14,

(374)78×99,

(375)542﹣199+99,

(376)65+99×65,

(377)470÷(5×47),

(378)1621﹣(312+621)﹣688,

(379)1185+1733+115+3267,

(380)101×99,

(381)4920÷24+3250÷125,

(382)24×57+43×24,

(383)36+42+64+158,

(384)1600﹣217﹣483,

(385)163×8+137×8,

(386)4200÷25÷4,

(387)100﹣28+72,

(388)200﹣28×5,

(389)297﹣28﹣72,

(390)4×89×25,

(391)78+99+22,

(392)900÷25÷4,

(393)329×101,

(394)54×98+46×98,

(395)3000÷125,

(396)800÷25,

(397)(125×25)×8,

(398)57×15+42×15+15,

(399)373+733+627,

(400)623﹣187﹣213+377,

(401)98+99×98,

(402)102×36,

(403)276+428+124+572,

(404)375÷(25﹣10)×15,

(405)125×43﹣25×43,

(406)32×202,

(407)285×38+15×38,

(408)120×25,

(409)490÷[(215﹣208)×4],

(410)95×101﹣95,

(411)7614﹣(2164+871),

(412)578+(791+422)+309,

(413)24×125×7,

(414)536×64﹣64-64×35,

(415)25×99×4,

(416)121+131+141+151+161+171+181,

(417)(80﹣1)×125,

(418)45×54+45×45+45,

(419)(543+543+543+543)×25,

(420)2300﹣165﹣35,

(421)25×204,

(422)125×(8+4),

(423)3700÷25÷4,

(424)56×32﹣46×32,

(425)99×78+78,

(426)125×103﹣125×3,

(427)2700﹣425﹣175,

(428)125×88,

(429)41+127+59+173,

(430)1300÷25÷4,

(431)156×l0l﹣156,

(432)25×71×4,

(433)135×99,

(434)49×99+49,

(435)5620÷(562×5),

(436)37+125+63+175,

(437)285+195+105+415,

(438)643﹣48﹣12﹣40,

(439)25×32,

(440)8×48×125,

(441)5400÷45÷2,

(442)360÷45,

(443)148×8+152×8,

(444)99×34,

(445)25×201﹣25,

(446)1268+227+473+132,

(447)202×12-24,

(448)789﹣511﹣89,

(449)735﹣238﹣162,

(450)356+83+144,

(451)53×99,

(452)199×39+39,

(453)7826﹣(826﹣1300),

(454)87×99+87,

(455)125×88,

(456)54×102,

(457)125×(4+8),

(458)36×111+888×8,

(459)65×34+34×34+34,

(460)25×13×4,

(461)567+142+558,

(462)546﹣378﹣162,

(463)1458+999,

(464)796+643﹣596,

(465)475﹣303,

(466)265+318+35,

(467)25×387×4,

(468)264+(37+136)+163,

(469)76×102,

(470)56×38+38+43×38,

(471)2358+998,

(472)5927﹣(458+627),

(473)3752﹣698,

(474)2000﹣586﹣114

(475)67×101﹣67

(476)125×48

(477)34×126+37×73+37

(478)85+137+63+215,

(479)885﹣(301﹣115),

(480)40×(25+125),

(481)99×123,

(482)64×125,

(483)79999+7999+799+79,

(484)630÷45,

(485)168×68+33×168﹣168,

(486)126×72,

(487)875+659+125

(488)813﹣256﹣344

(489)77+649﹣649

(490)99×7+7

(491)459×802+197×459+459,

(492)125×(8×2)+100,

(493)230×24+240×77,

(494)46×101﹣146,

(495)(841﹣41)÷25×4,

(496)135+39+55+61,

(497)45×201,

(498)2000÷25÷8,

(499)17×43﹣43×7,

(500)278﹣122﹣78,

(501)2000÷125÷8,

(502)800﹣138﹣162,

(503)99×38+38,

(504)25×33×4,

(505)(125+70)×8,

(506)101×87,

(507)312×4+188×4,

(508)28×225﹣2×225﹣6×225,

(509)389+327+211

(510)608﹣154﹣146

(511)587﹣98

(512)125×53×80,

(513)150+(140×8﹣252),

(514)178×78﹣78×78,

(515)771﹣169+229﹣431,

(516)25×19×4,

(517)(25×125)×(8×40),

(518)125×8×8,

(519)35×39+65×39,

(520)45×(200+2),

(521)125×32,

(522)195×115﹣195×15,

(523)25+75﹣25+75,

(524)99×38+38,

(525)3200÷4÷25,

(526)273﹣73﹣27,

(527)538﹣(461+38),

(528)125×48,

(529)1300÷25÷4,

(530)237﹣125+163﹣175,

(531)156×l0l﹣156,

(532)78×103,

(533)25×36×11,

(534)14×37+63×14,

(535)(25+125 )×8,

(536)5×4×20×25,

(537)168﹣52﹣48,

(538)1300÷25÷4,

(539)37+125+63+175,

(540)28×37+73×37﹣37,

(541)(300﹣1456÷26)×32,

(542)8×(29×l25),

(543)99×l0l,

(544)27×48+27×52,

(545)125×25×4×8,

(546)125×(296×80),

(547)33×33+99×89,

(548)560÷7÷8,

(549)88×201﹣88,

(550)36×7÷36×7,

(551)1300÷25÷4,

(552)32×(25×l25),

(553)32+155+68+145,

(554)201×16,

(555)125×103﹣125×3,

(556)2700﹣425﹣175,

(557)125×44,

(558)41+127+59+173,

(559)2300÷25÷4,

(560)156×l0l﹣156,

(561)49×99+49,

(562)5787﹣329﹣1071,

(563)52×11+11×18,

(564)912+88﹣512,

(565)376+28+172+124,

(566)43000÷8÷125,

(567)99×38+38,

(568)25×104,

(569)8×(29×l25),

(570)688-534+112-166,

(571)156×l0l-156,

(572)164-83-17,

(573)26×148-48×26,

(573)600÷25÷4,

(574)83×29+71×83,

(575)199+199×99,

(576)560÷(56÷9),

(577)101×99,

(578)28×37+73×37-37,

(579)7820-375-625,

(580)25×33×4,

(581)329+753+571+47,

(582)75+47×3, (583)2500÷4÷25,

(16+24)×35÷70,

(585)875+209+191-75, (586)57×43+33×43,

(587)25×103-125×3,

(588)2700-425-175,

(589)1200÷25÷4,

(590)41+127+59+173, (591)156×83+156×17,

(592)25×73×4,

(593)745-179-21,

(594)125×66×8,

(595)7200÷45÷2,

(596)1600-704-275-225-296,

(597)27+979+1973+9021,

(598)3291+599-898,

(599)833-243-457,

(600)199×47+47,

参考答案:

(1)25×125×4×8,

=(25×4)×(125×8),

=100×1000,

=100000.

(2)2005×2004÷4,

=2005×(2004÷4),

=2005×501,

=2005×500+2005,

=1002500+2005,

=1004505.

(3)55×66÷(11×11),

=55×66÷11÷11,

=(55÷11)×(66÷11),

=5×6,

=30;

(4) 25×(19+19+19+19),

=25×(19×4),

=25×4×19,

=10×19,

=190

(5)99×99+99,

=99×(99+1),

=99×100,

=9900;

(6)37×39﹣29×37,

=37×(39﹣29),

=37×10,

=370;

(7)18÷27÷6×27,

=18÷6×(27÷27)

=3×1,

=3;

(8)586×124+29×586﹣586×53,

=(124+29﹣53)×586,

=100×586,

=58600;

(9)28×5+2×4×35+21×20+14×40+8×62,

=28×5+2×4×7×5+3×7×4×5+14×2×20+8×62,

=28×5+28×10+28×15+28×20+8×62,

=28×(5+10+15+20)+8×62,

=28×50+8×62,

=1400+496,

=1896;

(10)125×32,

=125×(8×4),

=125×8×4,

=1000×4,

=4000;

(11)2008×99+2008,

=2008×(99+1),

=2008×100,

=200800;

(12)77﹣75+23﹣25,

=(77+23)﹣(75+25),

=100﹣100,

=0;

(13)125×88,

=125×(8×11),

=125×8×11,

=1000×11,

=11000;

(14)2011×99+2011,

=2011×(99+1),

=2011×100,

=201100;

(15)49﹣75+151﹣25,

=(49+151)﹣(75+25),

=200﹣100,

=100; 

(16)(125+9)×8,

=125×8+9×8,

=1000+72,

=1072;

(17)3.67×25×4,

=3.67×(25×4),

=367×100,

=36700;

(18)28+53l+72+469,

=(28+72)+(53l+469),

=100+1000,

=1100;

(19)49×102﹣2×49,

=49×(102﹣2),

=49×100,

=4900;

(20)833﹣243﹣457,

=833﹣(243+457),

=833﹣700,

=133;

(21)41000÷(41×5),

=(41000÷41)÷5,

=1000÷5,

=200;

(22)4200÷25,

=4200÷(5×5),

=4200÷5÷5,

=840÷5,

=168;

(23)280×36﹣360×18,

=280×36﹣36×180,

=(280﹣180)×36,

=100×36,

=3600;

(24)5400÷(50×27),

=5400÷50÷27,

=5400÷27÷50,

=200÷50,

=4;

(25)45×45+45×55

=(45+55)×45,

=100×45,

=4500;

(26)37×41﹣37

=(41﹣1)×37,

=40×37,

=1480;

(27)162+89﹣62

=162﹣62+89,

=189

(28)71×25+71×76,

=71×(25+76),

=71×101,

=71×(100+1),

=71×100+71×1,

=7100+71,

=7171;

(29)125×32×25,

=(125×8)×(4×25),

=1000×100,

=100000;

(30)398+167+102+333,

=(398+102)+(167+333),

=500+500,

=1000;

(31)1400﹣386﹣614,

=1400﹣(386+614),

=1400﹣1000,

=400.

(32)794﹣198,

=794﹣200+2,

=594+2,

=596;

(33)68×25,

=17×4×25,

=17×(4×25),

=17×100,

=1700;

(34)6756﹣193﹣207,

=6756﹣(193+207),

=6756﹣400,

=6356;

(35)72×125,

=9×8×125,

=9×(8×125),

=9×1000,

=9000;

(36)97×360+3×360,

=360×(97+3),

=360×100,

=36000

(37)44×25,

=(11×4)×25,

=11×(4×25),

=11×100,

=1100;

(38)1000﹣525+125,

=1000﹣(525-125),

=600

(39)402﹣27+198,

=(402+198)-27

=600-27

=573

(40)39+261+61,

=39+61+261,

=100+261,

=361;

(41)2010×9+2010,

=2010×(9+1),

=2010×10,

=20100;

(42)257﹣65+43+165,

=(257+43)+(165﹣65),

=300+100,

=400;

(43)32×25×125,

=8×4×25×125,

=(4×25)×(125×8),

=100×1000,

=100000;

(44)384+196+216+104,

=(384+216)+(196+104),

=600+300,

=900;

(45)8×(125+25)×4,

=125×8×4+25×4×8,

=4000+800,

=4800;

(46)78×57﹣78+78×43,

=78×(57+43﹣1),

=78×(100﹣1)

=78×100﹣78×1,

=7800﹣78,

=7722; 

(47)(6+8)×125

=6×125+8×125,

=750+1000.

=1750;

(48)726+53+74﹣353

=726+74+53﹣353,

=800-(353-53),

=800-300

=500;

(49)735﹣248﹣152

=735﹣(248+152),

=735﹣400,

=335;

(50)4500÷4÷25

=4500÷(4×25),

=4500÷100,

=45.

(51)32×27+73×32,

=(27+73)×32,

=100×32,

=3200;

(52)1260﹣432﹣568,

=1260﹣(432+568),

=1260﹣1000,

=260

(53)25×62×4,

=(25×4)×62,

=100×62,

=6200;

(54)125×88,

=125×8×11,

=1000×11,

=11000.

(55)17×243+17×56+17,

=17×(243+56+1),

=17×300,

=5100.

(56)25×32×125,

=25×(4×8)×125,

=(25×4)×(125×8),

=100×1000,

=100000;

(57)125×32×25,

=125×8×4×25,

=(125×8)×(4×25),

=1000×100,

=100000;

(58)132×77+22×132+132,

=132×(77+22+1),

=132×100,

=13200;

(59)1139﹣(350+139),

=1139﹣350﹣139,

=1139﹣139﹣350,

=1000﹣350,

=650;

(60)1170÷9÷13,

=1170÷(9×13),

=1170÷117,

=10

(61)98+376+2,

=(98+2)+376,

=100+376,

=476;

(62)25×97×4,

=(25×4)×97,

=100×97,

=9700;

(63)137×38+63×38,

=(137+63)×38,

=200×38,

=7600;

(64)300÷25÷4,

=300÷(25×4),

=300÷100,

=3;

(65)125×(80+8),

=125×80+125×8,

=10000+1000,

=11000;

(57)872﹣354﹣246,

=872﹣(354+246),

=872﹣600,

=272;

(57)25×64×4,

=25×4×64,

=100×64,

=6400;

(58)72×102﹣2×72,

=72×(102﹣2),

=72×100,

=7200;

(59)1002﹣5+98,

=1002+98﹣5,

=1100﹣5,

=1095.

(60)569+68+132+31,

=(569+31)+(68+132),

=600+200,

=800;

(61)38×25×4,

=38×(25×4),

=38×100,

=3800;

(62)2300﹣165﹣35,

=2300﹣(165+35),

=2300﹣200,

=2100;

(63)125×(8+4),

=125×8+125×4,

=1000+500,

=1500;

(64)3200÷25÷4,

=3200÷(25×4),

=3200÷100,

=32;

(65)23×32+68×23,

=23×(32+68),

=23×100,

=2300;

(66)25×204,

=25×(200+4),

=25×200+25×4,

=5000+100,

=5100;

(67)56×32﹣46×32,

=(56﹣46)×32,

=10×32,

=320.

(68)8+2﹣8+2,

=10﹣8+2,

=2+2,

=4;

(69)25×4÷25×4,

=100÷25×4,

=4×4,

=16;

(70)726﹣(526﹣150),

=726﹣526+150,

=200+150,

=350;

(71)286+198,

=286+200﹣2,

=486﹣2,

=484;

(72)314﹣202,

=314﹣200﹣2,

=114﹣2,

=112;

(73)526+301,

=526+300+1,

=826+1,

=827;

(74)223﹣99,

=223﹣100+1,

=123+1,

=124;

(75)98×58+58+58,

=(98+1+1)×58,

=100×58,

=5800.

(76)415﹣176﹣24,

=415﹣(176+24),

=415﹣200,

=215;

(77)829+37+71+63,

=(829+71)+(63+37),

=900+100,

=1000;

(78)125×89×8,

=125×8×89,

=1000×89,

=89000;

(79)428×78+572×78,

=(428+572)×78,

=1000×78,

=78000

(80)101×92﹣92,

=(101﹣1)×92,

=100×92,

=9200;

(81)907×99+907,

=(99+1)×907,

=100×907,

=90700;

(82)274+299+201+326,

=(274+326)+(299+201),

=600+500,

=1100;

(83)65×99+65,

=(99+1)×65,

=100×65,

=6500;

(84)38×42+38×58

=(42+58)×38,

=100×38,

=3800;

(85)415﹣176﹣24,

=415﹣(176+24),

=415﹣200,

=215;

(86)829+37+71+63,

=(829+71)+(37+63),

=900+100,

=1000;

(87)125×89×8,

=125×8×89,

=1000×89,

=89000;

(88)428×78+572×78,

=(428+572)×78,

=1000×78,

=78000.

(89)250+255+260+265+270,

=250+(255+265)+(260+270),

=250+520+530,

=1300.

(90)1041﹣(41+328),

=1041﹣41﹣328,

=1000﹣328,

=672;

(91)125×54﹣46×125,

=125×(54﹣46),

=125×8,

=1000;

(92)99+99×99,

=99×(1+99),

=99×100,

=9900

(93)329﹣186﹣14,

=329﹣(186+14),

=329﹣200,

=129;

(94)25×37×4,

=(25×4)×37,

=100×37,

=3700;

(95)720÷16÷5,

=720÷(16×5),

=720÷80,

=9.

(96)403﹣198﹣2,

=403﹣(198+2),

=403﹣200,

=203;

(97)76+149+24,

=(76+24)+149,

=100+149,

=249;

(98)154﹣(54+98),

=154﹣54﹣98,

=(154﹣54)﹣98,

=100﹣98,

=2.

(99)37×64+37×136,

=37×(64+136),

=37×200,

=7400; 

(100)216+305,

=200+16+300+5,

=200+300+16+5,

=500+21,

=521;

(101)25×32,

=25×4×8,

=800;

(102)47+236+64,

=47+(64+236),

=47+300,

=347;

(103)6×(15×9),

=6×15×9,

=90×9,

=810;

(104)402+539,

=400+(2+539),

=400+541,

=941;

(105)43+78+122+257,

=(43+257)+(78+122),

=300+200,

=500;

(106)25×(26×4),

=25×4×26,

=100×26,

=2600;

(107)25×44,

=25×4×11,

=100×11,

=1100;

(108)354+(229+46),

=354+46+229,

=400+229,

=629

(109)(125+7)×8,

=125×8+7×8,

=1000+56,

=1056;

(110)327+64+273+46,

=(327+273)+(64+46),

=600+110,

=710;

(111)645﹣58﹣142,

=645﹣(58+142),

=645﹣200,

=445;

(112)332×4+68×4,

=(332+68)×4,

=400×4,

=1600;

(113)135﹣87+65﹣13,

=(135+65)﹣(87+13),

=200﹣100,

=100;

(114)15×4×25,

=15×(4×25),

=15×100,

=1500;

(115)1992+144﹣992,

=(1992﹣992)+144,

=1000+144,

=1144;

(116)78×101,

=78×100+78×1,

=7878;

(117)69+11﹣69+11,

=(69﹣69)+(11+11),

=0+22,

=22.

(118)25×64×125

=25×4×2×8×125;

=(25×4)×2×(8×125),

=100×2×1000,

=200000;

(119)107×73﹣7×73

=(107﹣7)×73,

=100×73,

=7300

(120)39×101,

=39×(100+1),

=39×100+39,

=3939;

(121)75×299+75,

=75×(299+1),

=75×300,

=22500;

(122)720÷16÷5,

=720÷(16×5),

=720÷80,

=9. 

(123)456+328+672+44,

=(456+44)+(328+672),

=500+1000,

=1500;

(124)57×101,

=57×(100+1),

=57×100+57×1,

=5700+57,

=5757;

(125)87×99+87,

=87×(99+1),

=87×100,

=8700;

(126)84×72+84×29+84,

=84×72+84×29+84×1,

=84×(72+29+1),

=84×102,

=8568;

(127)6240﹣3885﹣1115,

=6240﹣(3885+1115),

=6240﹣5000,

=1240; 

(128)25×13×4,

=(25×4)×13,

=100×13,

=1300;

(129)99×36+36,

=(99+1)×36,

=100×36,

=3600;

(130)351+188+12,

=351+(188+12),

=351+200,

=551;

(131)88×125,

=(80+8)×125,

=80×125+8×125,

=10000+1000,

=11000;

(132)720÷16÷5,

=720÷(16×5),

=720÷80,

=9;

(133)317×15﹣17×15,

=(317﹣17)×15,

=300×15,

=4500

(134)(125+7)×8,

=125×8+7×8,

=1000+56,

=1056;

(135)3200÷25÷4,

=3200÷(25×4),

=32;

(136)327+64+273+46,

=(327+273)+(64+46),

=600+110,

=710;

(137)639﹣58﹣142,

=639﹣(58+142),

=639﹣200,

=439;

(138)25×137×40,

=25×40×137,

=1000×137,

=137000;

(139)4200﹣1934﹣1066,

=4200﹣(1934+1066),

=4200﹣3000,

=1200;

(140)290×54+29×460,

=290×54+290×46,

=290×(54+46),

=290×100,

=29000;

(141)46×102+308,

=46×(100+2)+308,

=46×100+46×2+308,

=4600+92+308,

=4600+(92+308),

=4600+400,

=5000

(142)25×137×4,

=25×4×137,

=100×137,

=13700;

(143)38×101,

=38×(100+1),

=38×100+38×1,

=3800+38,

=3838.

(144)68×200×25,

=68×(200×25)

=68×5000,

=340000;

(145)101×87﹣87,

=(101﹣1)×87,

=100×87,

=8700;

(146)56×67+33×56,

=56×(67+33),

=56×100,

=5600;

(147)9+498+102+211,

=(498+102)+(9+211),

=600+220,

=820;

(148)1305+1238﹣405,

=(1305﹣405)+1238,

=900+1238,

=2138;

(149)2452﹣(75+452),

=2452﹣452﹣75,

=2000﹣75,

=1925

(150)245﹣65﹣35,

=245﹣(65+35),

=245﹣100,

=145;

(151)186+82+18,

=186+(82+18),

=186+100,

=286;

(152)25×(4×97),

=(25×4)×97,

=100×97,

=9700;

(153)8×(25+20),

=8×25+8×20,

=200+160,

=360;

(154)24×56+44×24,

=24×(56+44),

=24×100,

=2400;

(155)700÷4÷25,

=700÷(4×25),

=700÷100,

=7.

(156)39×49+39×51,

=39×(49+51),

=39×100,

=3900;

(157)108×25,

=27×4×25,

=27×(4×25),

=27×100,

=2700;

(158)25×125×2×4,

=(25×4)×(125×2),

=100×250,

=25000;

(159)56×99+56,

=56×(99+1),

=56×100,

=5600;

(160)124×75﹣124×72﹣124×2,

=124×(75﹣72﹣2),

=124×1,

=124;

(161)104×39﹣39×4,

=(104﹣4)×39,

=100×39,

=3900.

(162)28×99+28

=(99+1)×28,

=100×28,

=2800;

(163)(125×39)×8

=125×8×39,

=1000×39,

=39000

(164)6958+1998,

=6958+2000﹣2,

=8958﹣2,

=8956;

(165)(81+108)÷27,

=81÷27+108÷27,

=3+4,

=7;

(166)3254﹣599﹣254,

=3254﹣254﹣600+1,

=3000﹣600+1,

=2400+1,

=2401.

(167)26×8×125,

=26×(8×125),

=26×1000,

=26000;

(168)4200÷15÷2,

=4200÷(15×2),

=4200÷30,

=140;

(169)25×33×4,

=25×4×33,

=100×33,

=3300.

(170)25×29×4,

=(25×4)×29,

=100×29,

=2900;

(171)598×101,

=598×(100+1),

=598×100+598×1,

=59800+598,

=60398;

(172)125×48,

=(125×8)×6,

=1000×8,

=8000;

(173)105×32,

=(100+5)×32,

=100×32+5×32,

=3200+160,

=3360;

(174)4×43×25,

=4×25×43,

=100×43,

=4300

(175)109+127+73,

=109+(127+73),

=109+200,

=309;

(176)608﹣154﹣146,

=608﹣(154+146),

=608﹣300,

=308;

(177)165﹣97,

=165﹣(100﹣3),

=165﹣100+3,

=65+3,

=68;

(178)258+98,

=258+(100﹣2),

=258+100﹣2,

=358﹣2,

=356.

(179)109+127+73,

=109+(127+73),

=109+200,

=309;

(180)608﹣154﹣146,

=608﹣(154+146),

=608﹣300,

=308;

(181)165﹣97,

=165﹣(100﹣3),

=165﹣100+3,

=65+3,

=68;

(182)258+98,

=258+(100﹣2),

=258+100﹣2,

=358﹣2,

=356.

(183)36×64﹣64+64×65,

=(36﹣1+65)×64,

=100×64,

=6400,;

(184)24×125×7,

=3×8×125×7,

=(3×7)×(8×125),

=21×1000,

=21000;

(185)25×(24+8)×125,

=25×32×125,

=25×4×8×125,

=(25×4)×(8×125),

=100×1000,

=100000;

(186)438﹣298,

=438﹣300+2,

=138+2,

=140;

(187)25×37×8,

=25×8×37,

=200×37,

=7400;

(188)4800÷16÷5,

=4800÷(16×5),

=4800÷80,

=60;

(189)816﹣285﹣15,

=816﹣(285+15),

=816﹣300,

=516 

(190)37×101﹣37,

=37×(100﹣1),

=37×100,

=3700;

(191)2563﹣79+437,

=(2563+437)﹣79,

=3000﹣79,

=2921.

(192)768﹣273﹣27

=768﹣(273+27),

=768﹣300,

=468;

(193)165+247+135

=165+135+247,

=300+247,

=547;

(194)198+355

=200+355﹣2,

=555﹣2,

=553;

(195)243﹣(43+26)

=243﹣43﹣36,

=200﹣36,

=164.

(196)45+63+37+55,

=(45+55)+(63+37),

=100+100,

=200;

(197)520﹣425﹣75,

=520﹣(425+75),

=520﹣500,

=20;

(198)8×(11×125),

=11×(8×125),

=11×1000,

=11000;

(199)525×99+525,

=525×(99+1),

=525×100,

=52500;

(200)3900÷25÷4,

=3900÷(25×4),

=3900÷100,

=39;

(201)275+364+636+725,

=(275+725)+(364+636),

=1000+1000,

=2000;

(202)1578﹣(61+578)﹣139,

=1578﹣61﹣578﹣139,

=(1578﹣578)﹣(61+139),

=1000﹣200,

=800

(203)9999×2010+2010

=(9999+1)×2010,

=10000×2010,

=20100000;

(204)456+123+544+877

=(456+544)+(123+877),

=1000+1000,

=2000;

(205)225×48+775×48

=225×48+775×48,

=(225+775)×48,

=1000×48,

=48000

(206)25×33×4×2,

=(25×4)×(33×2),

=100×66,

=6600;

(207)156+62﹣156+62,

=(156﹣156)+(62+62),

=0+124,

=124;

(208)700﹣296﹣104,

=700﹣(296+104),

=700﹣400,

=300;

(209)45+99×99+54,

=45+99×(100﹣1)+54,

=45+99×100﹣99×1+54,

=45+9900﹣99+54,

=(45+54﹣99)+9900,

=0+9900,

=9900;

(210)8×4×(125+25),

=(8×125×4)+(4×25×8),

=1000×4+100×8,

=4000+800,

=4800.

(211)25×(4×40),

=25×4×40,

=100×40,

=4000;

(212)47×16+63×16,

=(47+63)×16,

=110×16,

=1760;

(213)201×42﹣42,

=(201﹣1)×42,

=200×42,

=8400;  

(214)6854﹣(893+854+107),

=6854﹣854﹣(893+107),

=6000﹣1000,

=5000;

(215)28×19×25,

=4×7×19×25,

=(4×25)×(7×19),

=100×133,

=13300;

(216)327×99,

=327×(100﹣1),

=327×100﹣327×1,

=32700﹣327,

=32373;

(217)54000÷8÷125,

=54000÷(8×125),

=54000÷1000,

=54; 

(218)194+59+41+106,

=(194+106)+(59+41),

=300+100,

=400;

(219)383﹣(183+29),

=383﹣183﹣29,

=200﹣29,

=171;

(220)24×125,

=3×8×125,

=3×(8×125),

=3×1000,

=3000;

(221)156+45﹣55,

=155+1+45﹣55,

=(155﹣55)+(45+1),

=100+46,

=146

(222)1300÷25÷4,

=1300÷(25×4),

=1300÷100,

=13;

(223)5127﹣866﹣134,

=5127﹣(866+134),

=5127﹣1000,

=4127;

(224)75+127+25+63,

=(75+25)+(127+63),

=100+190,

=290

(225)363×7+237×7,

=(363+237)×7,

=600×7,

=4200;

(226)4300÷25÷4,

=4300÷(25×4),

=4300÷100,

=43;

(227)25×7×44,

=25×7×4×11,

=(25×4)×(7×11),

=100×77,

=7700;

(228)327+64+273+46,

=(327+273)+(64+46),

=600+110,

=710;

(229)750﹣326﹣144,

=750﹣(326+144),

=750﹣470,

=280;

(230)278+598+122,

=278+122+598,

=400+598,

=998;

(231)647﹣289﹣111,

=647﹣(289+111),

=647﹣400,

=247;

(232)287+198,

=287+(200﹣2),

=287+200﹣2,

=487﹣2,

=485

(233)357+256+1000,

=613+1000,

=1613;

(234)49×102﹣2×49,

=49×(102﹣2),

=49×100,

=4900;

(235)1563+254+437+746,

=(1563+437)+(254+746),

=2000+1000,

=3000;

(236)25×64×125,

=25×4×2×8×125,

=(25×4)×(8×125)×2,

=100×1000×2,

=100000×2,

=200000;

(237)43000÷(43×5),

=43000÷43÷5,

=1000÷5,

=200;

(238)1736÷28+1064÷28,

=(1736+1064)÷28,

=2800÷28,

=100

(239)168×25×4,

=168×(25×4),

=168×100,

=16800;

(240)32×87+13×32,

=(87+13)×32,

=100×32,

=3200;

(241)1126﹣637﹣463,

=1126﹣(637+463),

=1126﹣1100,

=26;

(241)(101﹣98)×44÷12,

=3×44÷12,

=132÷12,

=11

(242)43×99+43

=(99+1)×43,

=100×43,

=4300;

(243)1270﹣538﹣462

=1270﹣(538+462),

=1270﹣1000,

=270;

(244)577+492+423+508

=(577+423)+(492+508),

=1000+1000,

=2000;

(245)48×125

=6×(8×125),

=6×1000,

=6000

(246)32000÷125

=32×1000÷125,

=32×(1000÷125),

=32×8,

=256;

(247)107+538+462

=107+(538+462),

=107+1000,

=1107;

(248)54×45+45+45×45

=(54+1+45)×45,

=100×45,

=4500;

(249)125×(25×32 )

=125×25×8×4,

=(125×8)×(25×4),

=1000×100,

=100000;

(250) 153×43﹢43×47,

=(153+47)×43,

=200×43,

=8600;

(251)101×16,

=(100+1)×16,

=100×16+16,

=1600+16,

=1616;

(252)125×5×8×2,

=125×8×(5×2),

=1000×10,

=10000;

(253)39+144+61,

=39+61+144,

=100+144,

=244;

(254)27×4×5,

=27×(4×5),

=27×20,

=540;

(255)857﹣318﹣182,

=857﹣(318+182),

=857﹣500,

=357.

(256)25×77﹣37×25,

=25×(77﹣37),

=25×40,

=1000;

(257)125×7×32,

=125×7×8×4,

=(125×8)×(7×4),

=1000×28,

=28000;

(258)124+38+76+62,

=(124+76)+(38+62),

=200+100,

=300;

(259)222﹣56﹣44,

=222﹣(56+44),

=222﹣100,

=122;

(260)16×125,

=2×(8×125),

=2×1000,

=2000.

(261)534+262+66+138,

=(534+66)+(262+138),

=600+400,

=1000;

(262)99×165+165,

=(99+1)×165,

=100×165,

=16500;

(263)29×8×125,

=29×(8×125),

=29×1000,

=29000;

(264)8×(125+12),

=8×125+8×12,

=1000+96,

=1096;

(265)1428﹣544﹣456,

=1428﹣(544+456),

=1428﹣1000,

=428.

(266)250×60,

=(250×4)×(60÷4),

=1000×15,

=15000;

(267)630÷35÷2,

=630÷(35×2),

=630÷70,

=9;

(268)125×16,

=125×8×2,

=1000×2,

=2000;

(269)800÷32,

=(800÷8)÷(32÷8),

=100÷4,

=25;

(270)25×36,

=25×4×9,

=100×9,

=900;

(271)810÷54,

=(810÷9)÷(54÷9),

=90÷6,

=15;

(272)55×14,

=55×2×7,

=110×7,

=770.

(273)179+54+321,

=179+321+54,

=500+54,

=554;

(274)13×14×125×2,

=(13×14)×(125×2),

=182×250,

=45500;

(275)1525﹣31+75﹣49,

=(1525+75)﹣(31+49),

=1600﹣80,

=1520;

(276)115×23﹣23×15,

=(115﹣15)×23,

=100×23,

=2300;

(277)23×199+23,

=23×(199+1),

=23×200,

=4600;

(278)72×5+72×4+72,

=72×(5+4+1),

=72×10,

=720;

(279)34×72+34×28,

=34×(72+28),

=34×100,

=3400;

(280)203×99,

=203×(100﹣1),

=203×100﹣203×1,

=20300﹣203,

=20097;

(281)(80+4)×25,

=80×25+4×25,

=2000+100,

=2100

(282)125×7×8,

=125×8×7,

=1000×7,

=7000;

(283)27×45+55×27,

=27×(45+55),

=27×100,

=2700;

(284)728﹣155﹣328,

=728﹣328﹣155,

=400﹣155,

=245;

(285)463+342+158,

=463+(342+158),

=463+500,

=963;

(286)873﹣322+278,

=551+278,

=829;

(287)1234﹣773﹣327,

=1234﹣(773+327),

=1234﹣1100,

=134;

(288)111×9+111,

=111×(9+1),

=111×10,

=1110

(289)25×294×4,

=(25×4)×294,

=100×294,

=29400;

(290)4000÷125÷8,

=4000÷(125×8),

=4000÷1000,

=4;

(291)18×45+18×55,

=(45+55)×18,

=100×18,

=1800;

(292)239+144+61

=239+61+144,

=300+144,

=444.

(293)728﹣155﹣328,

=728﹣328﹣155,

=400﹣155,

=245;

(294)463+342+158,

=463+(342+158),

=463+500,

=963;

(295)873﹣322+278,

=551+278,

=829;

(296)1234﹣773﹣327,

=1234﹣(773+327),

=1234﹣1100,

=134;

(297)111×9+111,

=111×(9+1),

=111×10,

=1110.

(298)24×125,

=3×8×125,

=3×(8×125),

=3×1000,

=3000;

(299)114+48+86+52,

=(114+86)+(48+52),

=200+100,

=300;

(300)469×5×2,

=469×(5×2),

=469×10,

=4690;

(301)720÷15÷4,

=720÷(15×4),

=720÷60,

=12.

(302)3288﹣1999+212,

=3288﹣2000+1+212,

=1288+1+212,

=(1288+212)+1,

=1500+1,

=1501;

(303)769×101﹣769,

=769×(101﹣1),

=769×100,

=76900,;

(304)39000÷60÷50,

=39000÷(60×50),

=39000÷3000,

=13;

(305)96×125×7×24,

=96×7×3×125×8,

=96×7×3×(125×8),

=672×3×1000,

=2016×1000,

=2016000.

(306)1795+376+624﹣595,

=(1795﹣595)+(376+624),

=1200+1000,

=2200;

(307)102×79﹣79×2,

=(102﹣2)×79,

=100×79,

=7900;

(308)25×404,

=25×(4×101),

=(25×4)×101,

=100×101,

=10100.

(309)628﹣46+454,

=582+454,

=1036;

(310)(80﹣1)×125,

=80×125﹣1×125,

=10000﹣125,

=9875;

(311)(49+49+49+49)×250,

=(49×4)×250,

=49×(4×25),

=49×100,

=4900;

(312)45×54+45×45+45,

=45×(54+45+1),

=45×100,

=4500;

(313)324+67+76,

=324+76+67,

=400+67,

=467;

(314)34×27+66×27,

=(34+66)×27,

=100×27,

=2700;

(315)99×52+52,

=(99+1)×52,

=100×52,

=5200.

(316)(125+9)×8,

=125×8+9×8,

=1000+72,

=1072;

(317)3.27+6.4+2.73+4.6,

=(3.27+2.73)+(6.4+4.6),

=6+11,

=17;

(318)3200÷25÷4,

=3200÷(25×4),

=3200÷100,

=32;

(319)137×13+137×6+137,

=137×(13+6+1),

=137×20,

=2740.

(320)450×34+45×660

=45×340+45×660,

=45×(340+660),

=45×1000,

=45000.

(321)827﹣98﹣102,

=827﹣(98+102),

=827﹣200,

=627;

(322)378+169+22,

=378+22+169,

=400+169,

=569;

(323)475﹣197,

=(475+3)﹣(197+3),

=478﹣200,

=278;

(324)188+97+12,

=188+12+97,

=200+97,

=297;

(325)235+36+45,

=235+45+36,

=280+36,

=316;

(326)372+89+38,

=372+38+89,

=410+89,

=499;

(327)464+28+36,

=464+36+28,

=528;

(328)597+24+3,

=597+3+24,

=600+24,

=624;

(329)682﹣55﹣27,

=682﹣(55+27),

=682﹣82,

=600;

(330)725×23×4,

=725×4×23,

=2900×23,

=66700;

(331)8125×16,

=8125×8×2,

=65000×2,

=130000;

(333)932×25×25,

=23300×25,

=582500

(334)325+325+325+324,

=325+325+325+325﹣1,

=325×4﹣1,

=1300﹣1,

=1299;

(335)125×24,

=125×8×3,

=1000×3,

=3000;

(336)1200÷25,

=(1200×4)÷(25×4),

=4800÷100,

=48;

(337)908×11﹣908,

=908×(11﹣1),

=908×10,

=9080.

(338)329×99+329,

=329×(99+1),

=329×100,

=32900;

(339)12150÷45﹣7650÷45,

=(12150﹣7650)÷45,

=4500÷45,

=100;

(340)27+979+1973+9021,

=(27+1973)+(979+9021),

=2000+10000,

=12000

(341)1358-(442+358)+622,

=1358-358+(622﹣422),

=1000﹣200,

=800;

(342)25×58+25+25×41,

=25×(58+1+41),

=25×100,

=2500;

(343)101×15+358,

=(100+1)×15+358,

=100×15+15+358,

=1500+15+358,

=1515+358,

=1873;

(344)104×45÷52,

=104÷52×45,

=2×45,

=90;

(345)25×(40×6),

=25×40×6,

=1000×6,

=6000;

(346)532×76÷38,

=532×(76÷38),

=532×2,

=1064;

(347)173×8÷173×8,

=173÷173×8×8,

=1×8×8,

=64;

(348)28×25+375÷25,

=700+15,

=715;

(349)4260÷60×104,

=71×104,

=71×(100+4),

=71×100+71×4,

=7100+284,

=7384;

(350)796×3+584,

=2388+584,

=2972;

(351)25×319×4,

=25×4×309,

=100×309,

=30900;

(352)99×52,

=(100﹣1)×52,

=100×52﹣1×52,

=5200﹣52,

=5148;

(353)250×28,

=250×4×7,

=1000×7,

=7000;

(354)630÷35÷2,

=630÷(35×2),

=630÷70,

=9;

(355)52×72+52×29﹣52,

=52×(72+29﹣1),

=52×100,

=5200

(356)243+26+274,

=243+(26+274),

=243+300,

=543;

(357)35.24﹣(15.24+8.16),

=35.24﹣15.24﹣8.16,

=20﹣8.16,

=11.84;

(358)354﹣99,

=354﹣100+1,

=254+1,

=255;

(359)83×5+83×2+83×3,

=83×(5+2+3),

=83×10,

=830.

(360)43×202,

=43×(200+2),

=43×200+43×2,

=8600+86,

=8686;

(361)185×38+15×38,

=(185+15)×38,

=200×38,

=7600;

(362)160×25,

=40×4×25,

=40×(4×25),

=40×100,

=4000;

(363)420÷[(205﹣198)×4],

=420÷[7×4],

=420÷7÷4,

=60÷4,

=15;

(364)96×101﹣96,

=96×(101﹣1),

=96×100,

=9600.

(365)2000﹣586﹣114,

=2000﹣(586+114),

=2000﹣700,

=1300;

(366)55×25+25×45,

=(55+45)×25,

=100×25,

=2500;

(367)(40+4)×25,

=40×25+4×25,

=1000+100,

=1100;

(368)540÷12÷5,

=540÷(12×5),

=540÷60,

=9;

(369)77×13﹣13×27,

=(77﹣27)×13,

=50×13,

=650;

(370)104×32,

=(100+4)×32,

=100×32+32×4,

=3200+128,

=3328.

(371)282+142+158,

=282+(142+158),

=282+300,

=582;

(372)577+204,

=577+200+4,

=777+4,

=781;

(373)45×14,

=45×2×7,

=90×7,

=630;

(374)78×99,

=78×(100﹣1),

=78×100﹣78,

=7800﹣78,

=7722;

(375)542﹣199+99,

=542﹣(199﹣99),

=542﹣100,

=442;

(376)65+99×65,

=(1+99)×65,

=100×65,

=6500;

(377)470÷(5×47),

=470÷5÷47,

=470÷47÷5,

=10÷5,

=2;

(378)1621﹣(312+621)﹣688,

=1621﹣312﹣621﹣688,

=(1621﹣621)﹣(312+688),

=1000﹣1000,

=0.

(379)1185+1733+115+3267,

=(1185+115)+(1733+3267),

=1300+5000,

=6300;

(380)101×99,

=(100+1)×99,

=100×99+1×99,

=9900+99,

=9999;

(381)4920÷24+3250÷125,

=(4920×5)÷(24×5)+(3250×8)÷(125×8),

=24600÷120+26000÷1000,

=205+26,

=231;

(382)24×57+43×24,

=24×(57+43),

=24×100,

=2400;

(383)36+42+64+158,

=(36+64)+(42+158),

=100+200,

=300;

(384)1600﹣217﹣483,

=1600﹣(217+483),

=1600﹣700,

=900;

(385)163×8+137×8,

=(163+137)×8,

=300×8,

=2400;

(386)4200÷25÷4,

=4200÷(25×4),

=4200÷100,

=42;

(387)100﹣28+72,

=72+72,

=144;

(388)200﹣28×5,

=200﹣140,

=60;

(389)297﹣28﹣72,

=297﹣(28+72),

=297﹣100,

=197;

(390)4×89×25,

=4×25×89,

=100×89,

=8900;

(391)78+99+22,

=78+22+99,

=100+99,

=199;

(392)900÷25÷4,

=900÷(25×4),

=900÷100,

=9.

(393)329×101,

=329×(100+1),

=329×100+329×1,

=32900+329,

=33229;

(394)54×98+46×98,

=(54+46)×98,

=100×98,

=9800;

(395)3000÷125,

=(3000×8)÷(125×8),

=24000÷1000,

=24;

(396)800÷25,

=(800×4)÷(25×4),

=3200÷100,

=32;

(397)(125×25)×8,

=125×8×25,

=1000×25,

=25000;

(398)57×15+42×15+15,

=(57+42+1)×15,

=100×15,

=1500.

(399)373+733+627,

=373+627+733,

=1000+733,

=1733;

(400)623﹣187﹣213+377,

=(623+377)﹣(187+213),

=1000﹣400,

=600.

(401)98+99×98,

=98×(1+99),

=98×100,

=9800;

(402)102×36,

=(100+2)×36,

=100×36+2×36,

=3600+72,

=3672;

(403)276+428+124+572,

=(276+124)+(428+572),

=400+1000,

=1400;

(404)375÷(25﹣10)×15,

=375÷15×15,

=375×(15÷15),

=375;

(405)125×43﹣25×43,

=(125﹣25)×43,

=4300;

(406)32×202,

=32×(200+2),

=32×200+32×2,

=6400+64,

=6464;

(407)285×38+15×38,

=(285+15)×38,

=300×38,

=11400;

(408)120×25,

=30×4×25,

=30×(4×25),

=30×100,

=3000;

(409)490÷[(215﹣208)×4],

=490÷[7×4],

=490÷7÷4,

=70÷4,

=17.5;

(410)95×101﹣95,

=95×(101﹣1),

=95×100,

=9500.

(411)7614﹣(2164+871),

=7614﹣3035,

=4579.

(412)578+(791+422)+309,

=(578+422)+(791+309),

=1000+1100,

=2100.

(413)24×125×7,

=(3×7)×(8×125),

=21×1000,

=21000;

(414)536×64﹣64-64×35,

=(536﹣1-35)×64,

=500×64,

=32000;

(415)25×99×4,

=25×4×99,

=100×99,

=9900;

(416)121+131+141+151+161+171+181,

=151﹣30+151﹣20+151﹣10+151+151+10+151+20+151+30,

=(151+151+151+151+151+151+151)+(30﹣30+20﹣20+10﹣10),

=151×7,

=1057;

(417)(80﹣1)×125,

=80×125﹣1×125,

=10000﹣125,

=9875;

(418)45×54+45×45+45,

=45×(54+45+1),

=45×100,

=4500;

(419)(543+543+543+543)×25,

=543×4×25,

=543×(4×25),

=543×100,

=54300.

(420)2300﹣165﹣35,

=2300﹣(165+35),

=2300﹣200,

=2100;

(421)25×204,

=25×(200+4),

=25×200+25×4,

=5000+100,

=5100;

(422)125×(8+4),

=125×8+125×4,

=1000+500,

=1500;

(423)3700÷25÷4,

=3700÷(25×4),

=3700÷100,

=37;

(424)56×32﹣46×32,

=(56﹣46)×32,

=10×32,

=320;

(425)99×78+78,

=(99+1)×78,

=100×78,

=7800.

(426)125×103﹣125×3,

=125×(103﹣3),

=125×100,

=12500;

(427)2700﹣425﹣175,

=2700﹣(425+175),

=2700﹣600,

=2100;

(428)125×88,

=125×8×11,

=1000×11,

=11000;

(429)41+127+59+173,

=(41+59)+(127+173),

=100+300,

=400;

(430)1300÷25÷4,

=1300÷(25×4),

=1300÷100,

=13;

(431)156×l0l﹣156,

=156×(101﹣1),

=156×100,

=15600.

(432)25×71×4,

=25×4×71,

=100×71,

=7100;

(433)135×99,

=135×(100﹣1),

=135×100﹣135×1,

=13500﹣135,

=13365;

(434)49×99+49,

=49×(99+1),

=49×100,

=4900;

(435)5620÷(562×5),

=5620÷562÷5,

=10÷5,

=2;

(436)37+125+63+175,

=(37+63)+(125+175),

=100+300,

=400.

(437)285+195+105+415,

=(285+415)+(195+105),

=700+300,

=1000;

(438)643﹣48﹣12﹣40,

=643﹣(48+12+40),

=643﹣100,

=543;

(439)25×32,

=(25×4)×8,

=100×8,

=800;

(440)8×48×125,

=(8×125)×48,

=1000×48,

=48000;

(441)5400÷45÷2,

=5400÷(45×2),

=5400÷90,

=60;

(442)360÷45,

=360÷9÷5,

=40÷5,

=8;

(443)148×8+152×8,

=(148+152)×8,

=300×8,

=2400;

(444)99×34,

=34×100﹣34×1,

=3400﹣34,

=3366;

(445)25×201﹣25,

=25×(201﹣1),

=25×200,

=5000.

(446)1268+227+473+132,

=(1268+132)+(227+473),

=1400+700,

=2100;

(447)202×12-24,

=12×(202-2),

=2400;

(448)789﹣511﹣89,

=789﹣(511+89),

=789﹣600,

=189;

(449)735﹣238﹣162,

=735﹣(238+162),

=735﹣400,

=335.

(450)356+83+144,

=(356+144)+83,

=500+83,

=583;

(451)53×99,

=53×(100﹣1),

=53×100﹣53,

=5300﹣53,

=5247;

(452)199×39+39,

=39×(199+1),

=39×200,

=7800;

(453)7826﹣(826﹣1300),

=7826﹣826+1300,

=7000+1300,

=8300;

(454)87×99+87,

=87×(99+1),

=87×100,

=8700;

(455)125×88,

=125×(8×11),

=125×8×11,

=1000×11,

=11000;

(456)54×102,

=54×(100+2),

=54×100+54×2,

=5400+108,

=5508;

(457)125×(4+8),

=125×4+125×8,

=500+1000,

=1500;

(458)36×111+888×8,

=36×111+111×64,

=111×(36+64),

=111×100,

=11100;

(459)65×34+34×34+34,

=34×(65+34+1),

=34×100,

=3400;

(460)25×13×4,

=25×4×13,

=100×13,

=1300.

(461)567+142+558,

=567+(142+558),

=567+700,

=1267;

(462)546﹣378﹣162,

=546﹣(378+162),

=546﹣540,

=6;

(463)1458+999,

=1458+1000﹣1,

=2458﹣1,

=2457;

(464)796+643﹣596,

=796﹣596+643,

=200+643,

=843;

(465)475﹣303,

=475﹣300﹣3,

=175﹣3,

=172;

(466)265+318+35,

=265+35+318,

=300+318,

=618.

(467)25×387×4,

=(25×4)×387,

=100×387,

=38700;

(468)264+(37+136)+163,

=264+37+136+163,

=(264+136)+(37+163),

=400+200,

=600;

(469)76×102,

=76×(100+2),

=76×100+76×2,

=7600+152,

=7752;

(470)56×38+38+43×38,

=(56+43+1)×38,

=100×38,

=3800.

(471)2358+998,

=2358+1000﹣2,

=3358﹣2,

=3356;

(472)5927﹣(458+627),

=5927﹣627﹣458,

=5300﹣458,

=4842;

(473)3752﹣698,

=3752﹣700+2,

=3052+2,

=3054;

(474)2000﹣586﹣114

=2000﹣(586+114),

=2000﹣700,

=1300;

(475)67×101﹣67

=(101﹣1)×67,

=100×67,

=6700;

(476)125×48

=125×8×6,

=1000×6,

=6000;

(477)34×126+37×73+37

=4284+2701+37,

=7022;

(478)85+137+63+215,

=(85+215)+(137+63),

=300+200,

=500;

(479)885﹣(301﹣115),

=885﹣301+115,

=(885+115)﹣301,

=1000﹣301,

=699;

(480)40×(25+125),

=40×25+40×125,

=1000+5000,

=6000;

(481)99×123,

=(100﹣1)×123,

=100×123﹣1×123,

=12300﹣123,

=12177;

(482)64×125,

=8×8×125,

=8×(8×125),

=8×1000,

=8000;

(483)79999+7999+799+79,

=(80000﹣1)+(8000﹣1)+(800﹣1)+(80﹣1),

=(80000+8000+800+80)﹣(1+1+1+1),

=88880﹣4,

=88876;

(484)630÷45,

=630÷(9×5),

=630÷9÷5,

=70÷5,

=14;

(485)168×68+33×168﹣168,

=168×(68+33﹣1),

=168×100,

=16800;

(486)126×72,

=(125+1)×72,

=125×72+1×72,

=125×8×9+1×72,

=1000×9+72,

=9000+72,

=9072.

(487)875+659+125

=875+125+659,

=1000+659,

=1659;

(488)813﹣256﹣344

=813﹣(256+344),

=813﹣600,

=213;

(489)77+649﹣649

=649﹣649+77,

=0+77,

=77;

(490)99×7+7

=(99+1)×7,

=100×7,

=700.

(491)459×802+197×459+459,

=459×802+197×459+459×1,

=459×(802+197+1),

=459×1000,

=459000.

(492)125×(8×2)+100,

=125×8×2+100,

=1000×2+100,

=2000+100,

=2100;

(493)230×24+240×77,

=23×240+240×77,

=240×(23+77),

=240×100,

=24000;

(494)46×101﹣146,

=46×(100+1)﹣146,

=4600+46﹣146,

=4600﹣(146﹣46),

=4600﹣100,

=4500;

(495)(841﹣41)÷25×4,

=800÷25×4,

=8×100÷25×4,

=8×(100÷25)×4,

=8×4×4,

=32×4,

=128.

(496)135+39+55+61,

=(135+55)+(39+61),

=190+100,

=290;

(497)45×201,

=45×(200+1),

=45×200+45×1,

=9000+45,

=9045;

(498)2000÷25÷8,

=2000÷(25×8),

=2000÷200,

=10;

(499)17×43﹣43×7,

=(17﹣7)×43,

=10×43,

=430;

(500)278﹣122﹣78,

=278﹣(122+78),

=278﹣200,

=78.

(501)2000÷125÷8,

=2000÷(125×8),

=2000÷1000,

=2;

(502)800﹣138﹣162,

=800﹣(138+162),

=800﹣300,

=500;

(503)99×38+38,

=(99+1)×38,

=100×38,

=3800;

(504)25×33×4,

=25×4×33,

=100×33,

=3300;

(505)(125+70)×8,

=125×8+70×8,

=1000+560,

=1560;

(506)101×87,

=(100+1)×87,

=100×87+1×87,

=8700+87,

=8787;

(507)312×4+188×4,

=(312+188)×4,

=500×4,

=2000;

(508)28×225﹣2×225﹣6×225,

=(28﹣2﹣6)×225,

=20×225,

=4500.

(509)389+327+211

=389+211+327,

=600+327,

=927;

(510)608﹣154﹣146

=608﹣(154+146),

=608﹣300,

=308;

(511)587﹣98

=587﹣(100﹣2),

=587﹣100+2,

=487+2,

=489;

(512)125×53×80,

=125×80×53,

=1000×53,

=53000;

(513)150+(140×8﹣252),

=150+(1120﹣252),

=150+868,

=1018;

(514)178×78﹣78×78,

=78×(178﹣78),

=78×100,

=7800;

(515)771﹣169+229﹣431,

=(771+229)﹣(169+431),

=1000﹣600,

=400.

(516)25×19×4,

=25×4×19,

=100×19,

=1900;

(517)(25×125)×(8×40),

=(25×40)×(125×8),

=1000×1000,

=1000000;

(518)125×8×8,

=1000×8,

=8000;

(519)35×39+65×39,

=(35+65)×39,

=100×39,

=3900;

(520)45×(200+2),

=45×200+45×2,

=9000+90,

=9090.

(521)125×32,

=125×(8×4),

=(125×8)×4,

=1000×4,

=4000;

(522)195×115﹣195×15,

=195×(115﹣15),

=195×100,

=19500;

(523)25+75﹣25+75,

=(25﹣25)+(75+75),

=0+150,

=150;

(524)99×38+38,

=(99+1)×38,

=100×38,

=3800;

(525)3200÷4÷25,

=3200÷(4×25),

=3200÷100,

=32;

(526)273﹣73﹣27,

=273﹣(73+27),

=273﹣100,

=173.

(527)538﹣(461+38),

=538﹣499,

=39;

(528)125×48,

=125×(8×6),

=(125×8)×6,

=1000×6,

=6000;

(529)1300÷25÷4,

=1300÷(25×4),

=1300÷100,

=13;

(530)237﹣125+163﹣175,

=(237+163)﹣(125+175),

=400﹣300,

=100;

(531)156×l0l﹣156,

=156×(l0l﹣1),

=156×100,

=15600;

(532)78×103,

=78×(100+3),

=78×100+78×3,

=7800+234,

=8034;

(533)25×36×11,

=25×4×9×11,

=(25×4)×(9×11),

=100×99,

=9900;

(534)14×37+63×14,

=14×(37+63),

=14×100,

=1400;

(535)(25+125 )×8,

=25×8+125×8,

=200+1000,

=1200;

(536)5×4×20×25,

=4×25×5×20,

=(4×25)×(5×20),

=100×100,

=10000;

(537)168﹣52﹣48,

=168﹣(52+48),

=168﹣100,

=68;

(538)1300÷25÷4,

=1300÷(25×4),

=1300÷100,

=13;

(539)37+125+63+175,

=(37+63)+(125+175),

=100+300,

=400;

(540)28×37+73×37﹣37,

=37×(28+73﹣1),

=37×100,

=3700;

(541)(300﹣1456÷26)×32,

=(300﹣56)×32,

=244×32,

=7808;

(542)8×(29×l25),

=(8×125)×29,

=1000×29,

=29000;

(543)99×l0l,

=99×(100+1),

=99×100+99×1,

=9900+99,

=9999.

(544)27×48+27×52,

=27×(48+52),

=27×100,

=2700;

(545)125×25×4×8,

=(125×8)×(25×4),

=1000×100,

=100000;

(546)125×(296×80),

=125×80×296,

=10000×296,

=2960000;

(547)33×33+99×89,

=99×3+99×89,

=99×(3+89),

=99×92,

=(100﹣1)×92,

=100×92﹣1×92,

=9200﹣92,

=9108;

(548)560÷7÷8,

=560÷(7×8),

=560÷56,

=10;

(549)88×201﹣88,

=88×(201﹣1),

=88×200,

=17600

(550)36×7÷36×7,

=36÷36×7×7,

=1×7×7,

=49;

(551)1300÷25÷4,

=1300÷(25×4),

=1300÷100,

=13;

(552)32×(25×l25),

=32×25×125,

=8×4×25×125,

=4×25×(8×125),

=100×1000,

=100000;

(553)32+155+68+145,

=(32+68)+(155+145),

=100+300,

=400;

(554)201×16,

=(200+1)×16,

=200×16+16,

=3200+16,

=3216.

(555)125×103﹣125×3,

=125×(103﹣3),

=125×100,

=12500;

(556)2700﹣425﹣175,

=2700﹣(425+175),

=2700﹣600,

=2100;

(557)125×44,

=(125×4)×11,

=500×11,

=5500;

(558)41+127+59+173,

=(41+59)+(127+173),

=100+300,.

=400;.

(559)2300÷25÷4,

=2300÷(25×4),

=2300÷100,

=23;

(560)156×l0l﹣156,

=156×(l0l﹣1),

=156×100,

=15600;

(561)49×99+49,

=49×(99+1),

=49×100,

=4900.

(562)5787﹣329﹣1071,

=5787﹣(329+1071),

=5787﹣1400,

=4387;

(563)52×11+11×18,

=(52+18)×11,

=70×11,

=770;

(564)912+88﹣512,

=912-512+88,

=488

(565)376+28+172+124, =(376+124)+(28+172), =500+200, =700; (566)43000÷8÷125, =43000÷(8×125), =43000÷1000, =43; (567)99×38+38, =38×(99+1), =38×100, =3800; (568)25×104, =25×(100+4), =25×100+25×4, =2500+100, =2600; (569)8×(29×l25), =8×125×29, =1000×29, =29000; (570)688-534+112-166, =(688+112)-(534+166), =800-700, =100; (571)156×l0l-156, =156×(101-1), =156×100, =15600; (572)164-83-17, =164-(83+17), =164-100, =64; (573)26×148-48×26, =26×(148-48), =26×100, =2600.

(573)600÷25÷4, =600÷(25×4), =600÷100, =6; (574)83×29+71×83, =83×(29+71), =83×100, =8300; (575)199+199×99, =199×(99+1), =199×100, =19900; (576)560÷(56÷9), =560÷56×9

=10×9, =90; (577)101×99, =(100+1)×99, =100×99+1×99, =9900+99, =9999; (578)28×37+73×37-37, =(28+73-1)×37, =100×37, =3700.

(579)7820-375-625, =7820-(375+625), =7820-1000, =6820; (580)25×33×4, =25×4×33, =100×33, =3300; (581)329+753+571+47, =(329+571)+(47+753), =900+800, =1700; (582)75+47×3, =75+141, =216; (583)2500÷4÷25, =2500÷(4×25), =2500÷100, =25; (584)(16+24)×35÷70, =40×35÷70, =1400÷70, =20; (585)875+209+191-75, =(875-75)+(209+191), =800+400, =1200; (586)57×43+33×43, =(57+33)×43, =90×43, =3870.

(587)25×103-125×3, =25×(100+3)-125×3, =25×100+25×3-125×3, =2500+75-375, =2575-375, =2200. (588)2700-425-175, =2700-(425+175), =2700-600, =2100; (589)1200÷25÷4, =1200÷(25×4), =1200÷100, =12; (590)41+127+59+173, =(41+59)+(127+173), =100+300, =400; (591)156×83+156×17, =156×(83+17), =156×100, =15600; (592)25×73×4, =25×4×73, =100×73, =7300.

(593)745-179-21, =745-(179+21), =745-200, =545; (594)125×66×8, =(125×8)×66, =1000×66, =66000; (595)7200÷45÷2, =7200÷(45×2), =7200÷90, =80; (596)1600-704-275-225-296, =1600-(704+296)-(275+225), =1600-1000-500, =600-500, =100; (597)27+979+1973+9021, =(27+1973)+(979+9021), =2000+10000, =12000; (598)3291+599-898, =3291+600-1-900+2, =3291+600-900-1+2, =3891-900-1+2, =2991-1+2, =2990+2, =2992; (599)833-243-457, =833-(243+457), =833-700, =133; (600)199×47+47, =(199+1)×47, =200×47, =9400.

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