四则运算 简便计算(5)加减乘除
(1)(98+147)÷49 (2)(230-23)÷23
(3)(250-25)÷25 (4)1736÷28+1064÷28
(5)125×(860+240÷12) (6) 700+612÷12×4
(7)(37+15)×85+1360 (8)2005×20062006-2006×20052005
(9)42×125×8×5 (10)25×4×88×125
(11)(12+50)×40 (12)125×(40-4)
(13)86×103 (14)18×125
(15)25×44 (16)42×25
(17)99×9 (18)99×78
(19)45×38+38×55 (20)28×21+28×79
(21)37×23-23×7 (22)38×46+64×38
(23)99×32+32 (24)46+46×59
(25)167×2+167×3+167×5 (26)39×8+6×39-39×4
(27)28×225-2×225-6×225 (28)(42+25)×125+(18+15)×125
(29)65+73+135 (30)357+288+143
(31)272+68+28 (32)129+235+171+165
(33)17+145+23+35 (34)400-256-44
(35)517-53-47 (36)284-159-41
(37)258-42-16 (38)545-167-145
(39)478-47-178 (40)344-(144+37)
(41)236-(177+36) (42)45×4×5
(43)23 ×5×2 (44)25×9×4
(45)8×(125×13) (46)(250×125)×(4×8)
(47)88×125 (48)72×125
(49)125×64×25 (50)42×125×8×5
(51)25×4×88×125 (52)(12+50)×40
(53)125×(40-4) (54)76×103
(55) 18×125 (56)25×44
(57)42×25 (58)99×9
(59)99×78 (60)45×37+37×55
(61)28×21+28×79 (62)17×23-23×7
(63)38×46+64×38 (64)99×32+32
(65)46+46×59 (66)167×2+167×3+167×5
(67)39×8+6×39-39×4 (68)360÷4÷9
(69)250÷5÷2 (70)600÷12÷5
(71)800÷5÷8 (72)480÷5÷48
(73)240÷5÷12 (74)420÷35
(75)117+392+608 (76) 88×27+27×12
(77)87×53+87×47 (78)7×75-7×25
(79)234―66―34 (80)528―53―47
(81)435-(135+189) (82) 167×25+32×25+25
(83)38×99+38 (84)147+147×99
(85)25×(4+8) (86)108×75
(87)35×201 (88)75×98
(89)25×7×4 (90)2×125×8×6
(91)25×32×125 (92)125×88
(93)25×48 (94)3500÷4÷25
(95)420÷35÷2 (96)30+255+70
(97)282+41+159 (98)88×27+27×12
(99)6.3 ÷ 1.8 (100)125×64+125×36
(101)64×199+64 (102)528―53―47
(103)158+395+105 (104)4800÷25
(105)(13×8×5×6)÷(4×5×6)
(106)2.1 × 99 + 2.1 (107)0.18 +4.26 -0.18 +4.26
(108)8100÷4÷75 (109)16800÷120
(110)1248÷24 (111)3150÷15
(112)(10000-1000-100-10)÷10 (113)138+293+62+107
(114)99+999+9999+99999 (115) 66.86-8.66-1.34
(116)6881÷89 (117)10 - 0.432 - 2.568
(118) 98×199 (119) 25 × 6.8 × 0.04
(120)355+260+140+245 (121)102×99
(122)2×125 (123)645-180-245
(124)125×32 (125)25×46
(126)101×56 (127)99×26
(128)382×101-382 (129)4×60×50×8
(130)930 ÷ 0.6 ÷5 (131)1022-478-422
(132)63.4 ÷ 2.5 ÷ 0.4 (133)2357-183-317-357
(134)672-36+64 (135)36+64-36+64
(136) 500-257-34-143 (137)755-287+87
(138)1814-378-422 (139)89×99+89
(140)3999+498 (141)88×225+225×12
(142)698-291-9 (143)568-(68+178)
(144)382+165+35-82 (145)155+256+45-98
(146)759-126-259 (147)216+89+11
(148)75×99+2×75 (149)1050÷15÷7
(150)7200÷24÷30 (151)219 ×99
(152)58 ×101 (153)76 ×102
(154)78×46+78×54 (155)169×123—23×169
(156)129×101—129 (157)56×51+56×48+56
(158)125×25×32 (159)24×25
(160)514+189—214 (161)732—254—332
(162)56×25×4×125 (163)24×74+26×24
(164)228+(72+189) (165)109+(291—176)
(166)(375+1034)+(966+125) (167)(2130+783+270)+1017
参考答案
(1)(98+147)÷49 (2)(230-23)÷23 (3)(250-25)÷25
=98÷49+147÷49 =230÷23-23÷23 =250÷25-25÷25
=5 =9 =9
(4)1736÷28+1064÷28 (5)125×(860+240÷12)(6)700+612÷12×4
=(1736+1064) ÷28 =125×880 =700+612÷3÷4×4
=100 =125×8×110 =700+204
=110000 =904
(7)(37+15)×85+1360 (8)2005×20062006-2006×20052005
=50×85+2×85+1360 =2005×2006×10001-2006×2005×10001
=4250+170+1360 =0
=5610+170=5780
(9) 42×125×8×5 (10) 25×4×88×125
=125×8×(42×5) =100×11×(8×125)
=210000 =1100000
(11)(12+50)×40 (12)125×(40-4) (13)86×103
=12×40+50×40 =125×40-125×4 =86×(100+3)
=2480 =4500 =86×100+86×3
=8858
(14)18×125 (15)25×44 (16)42×25
=(10+8) ×125 =25×4×11 =2×25×21
=125×10+125×8 =1100 =1050
=2250
(17)99×9 (18)99×78 (19)45×38+38×55
=(100-1) ×9 =(100-1) ×78 =(45+55) ×38
=100×9-9 =78×100-78 =3800
=891 =7722
(20)28×21+28×79 (21)37×23-23×7 (22)38×46+64×38
=(21+79) ×28 =(37-7) ×23 =(46+64) ×38
=2800 =690 =3800
(23)99×32+32 (24)46+46×59 (25)167×2+167×3+167×5
=(99+1) ×32 =(59+1) ×59 =(2+3+5) ×167
=3200 =3540 =1670
(26)39×8+6×39-39×4 (27)28×225-2×225-6×225
=(8+6-4) ×39 =(28-2-6) ×225
=390 =2500
(28)(42+25)×125+(18+15)×125 (29)65+73+135 (30)357+288+143
=[(42+18)+(25+15)] ×125 =65+135+73 =357+143+288
=12500 =273 =788
(31)272+68+28 (32)129+235+171+165 (33) 17+145+23+35
=272+28+68 =129+171+(235+165) =17+23+(145+35)
=368 =700 =220
(34)400-256-44 (35)517-53-47 (36)284-159-41 (37)258-42-16
=400-(256+44) =517-(53+47) =284-(159+41) =258-(42+16)
=100 =417 =84 =200
(38)545-167-145 (39)478-47-178 (40) 344-(144+37)
=545-145-167 =478-178-47 =344-144-37
=233 =253 =163
(41)236-(177+36) (42)45×4×5 (43)23 ×5×2
=236-36-177 =45×(4×5) =23×(5×2)
=23 =90 =230
(44)25×9×4 (45)8×(125×13) (46)(250×125)×(4×8)
=25×4×9 =8×125×13 =250×4×(125×8)
=900 =13000 =1000000
(47) 88×125 (48) 72×125 (49) 125×64×25
=11×(8×125) =9×(8×125) =125×8×(8×25)
=11000 =9000 =100000
(50)42×125×8×5 (51)25×4×88×125 (52)(12+50)×40
=42×5×(8×125) =100×11×(8×125) =12×40+50×40
=210000 =1100000 =2480
(53)125×(40-4) (54)76×103 (55)18×125
=125×40-125×4 =76×(100+3) =(10+8) ×125
=4500 =76×100+3×76 =10×125+8×125
=7828 =2250
(56) 25×44 (57)42×25 (58)99×9 (59)99×78
=25×(40+4) =(40+2) ×25 =(100-1) ×9 =(100-1) ×78
=25×40+25×4 =40×25+2×25 =9×100-9 =7800-78
=1100 =1050 =891 =7722
(60)45×37+37×55 (61) 28×21+28×79 (62)17×23-23×7
=(45+55) ×37 =(21+79) ×79 =(17-7) ×23
=3700 =7900 =230
(63)38×46+64×38 (64)99×32+32 (65)46+46×59
=(46+64) ×38 =(99+1) ×32 =(59+1) ×46
=110×38 =3200 =2760
=(10+100) ×38
=38×10+38×100
=4180
(66)167×2+167×3+167×5 (67)39×8+6×39-39×4 (68)360÷4÷9
=(2+3+5) ×167 =(8+6-4) ×39 =360÷(4×9)
=1670 =390 =10
(69)250÷5÷2 (70) 600÷12÷5 (71)800÷5÷8 (72)480÷5÷48
=250÷(5×2) =600÷(12×5) =800÷8÷5 =480÷48÷5
=25 =10 =20 =2
(73)240÷5÷12 (74)420÷35 (75)117+392+608 (76)88×27+27×12
=240÷12÷5 =420÷7÷5 =117+(392+608) =(88+12) ×27
=4 =12 =1117 =2700
(77)87×53+87×47 (78) 7×75-7×25 (79) 234―66―34
=(53+47) ×87 =(75-25) ×7 =234-34-66
=8700 =350 =134
(80)528―53―47 (81)435-(135+189) (82)167×25+32×25+25
=528-(53+47) =435-135-189 =(167+32+1) ×25
=428 =111 =5000
(83)38×99+38 (84)147+147×99 (85)25×(4+8)
=(99+1) ×38 =(99+1) ×147 =25×4+8×25
=3800 =14700 =300
(86)108×75 (87)35×201 (88)75×98
=(100+8) ×75 =35×(200+1) =75×(100-2)
=8100 =7035 =7350
(89)25×7×4 (90)2×125×8×6 (91)25×32×125
=25×4×7 =2×6×(125×8) =25×4×(8×125)
=700 =12000 =100000
(92)125×88 (93)25×48 (94)3500÷4÷25
=25×8×11 =25×8×6 =3500÷(4×25)
=11000 =600 =35
(95)420÷35÷2 (96)30+255+70 (97)282+41+159
=420÷(35×2) =30+70+255 =282+(41+159)
=60 =355 =482
(98)88×27+27×12 (99)6.3 ÷ 1.8 (100)125×64+125×36
=(88+12) ×27 =6.3÷0.9÷2 =(64+36) ×125
=2700 =3.5 =12500
(101)64×199+64 (102) 528―53―47 (103) 158+395+105
=64×(199+1) =528-(53+47) =158+(395+105)
=12800 =428 =658
(104)4800÷25 (105)(13×8×5×6)÷(4×5×6 (106) 2.1 × 99 + 2.1
=48×100÷25 =13×(8÷4) ×(5÷5) ×(6÷6) =2.1×(99+1)
=48×4 =26 =210
=192
(107)0.18 +4.26 -0.18 +4.26 (108)8100÷4÷75 (109)16800÷120 =4.26+4.26+(0.18-0.18) =(81x100)÷4÷(25x3) =(12000+4800)÷120 =8.52 =81÷3x(100÷4÷25) =140
(110)1248÷24 (111)3150÷15 (112)(10000-1000-100-10)÷10
=1248÷12÷2 =3150÷5÷3 =10000÷10-1000÷10-100÷10-10÷10
=52 =210 =1000-(100+10+1)
=889
(113)138+293+62+107 (114)99+999+9999+99999
=138+62+(293+107) =(99+1)+(999+1)+(9999+1)+(99999+1)-4
=500 =111096
(115)66.86-8.66-1.34(116)8811÷89 (117)10 - 0.432 - 2.568(118)98×199
=66.88-(8.66+1.34) =(8900-89)÷89 =10-(0.432+2.568) =98×(200-1)
=56.88 =99 =7 =19502
(119)25 × 6.8 × 0.04 (120)355+260+140+245 ( 121)102×99 (122)2×125
=25×0.04×6.8 =355+245+(260+140) =99×(100+2) =2×5×25
=6.8 =1000 =10098 =250
(123)645-180-245 (124)125×32 (125)25×46
=645-245-180 =125×8×4 =25×(40+6)
=220 =4000 = 1150
(126)101×56 (127)99×26 (128)382×101-382
=(100+1) ×56 =(100-1) ×26 =382×(101-1)
=5656 =2574 =38200
(129)4×60×50×8 (130) 930 ÷ 0.6 ÷5 (131)1022-478-422
=4×50×(60×8) =930÷(0.6×5) =1022-(478+422)
=96000 =310 =122
(132)63.4 ÷ 2.5 ÷ 0.4 (133)2357-183-317-357 (134)672-36+64
=63.4 ÷(2.5×0.4) =2357-357-(183+317) =672-36-36+36+64
=63.4 =1500 =(672-72)+(36+64)
=700
(135)36+64-36+64 (136)500-257-34-143 (137)755-287+87
=(36-36)+(64+64) =500-(257+34)-143 =755-(287-87)
=128 =57 =555
(138)1814-378-422 (139)89×99+89 (140)3999+498
=1814-(378+422) =(99+1) ×89 =(4000-1)+(500-2)
=1014 =8900 =4000+500-1-2 =4497
(141)88×225+225×12 (142)698-291-9 (143)568-(68+178)
=(88+12) ×225 =698-(291+9) =568-68-178
=22500 =398 =322
(144)382+165+35-82 (145)155+256+45-98
=382-82+(165+35) =(155+45)+256-(100-2)
=500 =200+256-100+2
=358
(146)759-126-259 (147)216+89+11 (148)75×99+2×75
=759-259-126 =216+(89+11) =75×(99+2)
=374 =316 =75×100+75×1
=7575
(149)1050÷15÷7 (150)7200÷24÷30 (151)219 ×99
=1050÷(15×7) =7200÷(24×30) =219×(100-1)
=10 =10 =219×100-219×1
=21681
(152)58 ×101 (153)76 ×102 (154)78×46+78×54 (155)169×123—23×169
=58×(100+1) =76×(100+2) =(46+54) ×78 =(123-23) ×169
=5858 =7752 =7800 =16900
(156)129×101—129 (157)56×51+56×48+56 (158)125×25×32 (159)24×25
=(101-1) ×129 =(51+48+1) ×56 =125×8×(25×4) =8×25×3
=12900 =5600 =100000 = 300
(160)514+189—214 (161)732—254—332 (162)56×25×4×125
=514-214+189 =732-332-254 =4×25×(8×125) ×7
=489 =146 =700000
(163)24×73+26×24 (164)228+(72+189) (165)109+(291—176)
=(74+26) ×24 =228+72+189 =109+291-176
=2400 =489 =324
(166)(375+1034)+(966+125) (167)(2130+783+270)+1017
=(375+125)+(1034+966) =2130+270+(783+1017)
=2500 =4200