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五年级小数四则混合运算专项练习276题(24页)

试卷简介

这份试卷是针对小学高年级学生的小数混合运算专项练习。题目数量非常庞大,共有276道题目,覆盖了多种小数运算场景,包括加法、减法、乘法和除法的组合。每道题目都提供了详细的参考答案,便于学生自我检测与教师批改。

所涉及的知识点

本试卷主要涵盖了小学高年级学生需要掌握的小数混合运算技能,涉及小数的加减乘除及它们之间的综合应用。通过大量习题的练习,帮助学生巩固小数运算的基本规则,提高解题速度与准确性。

小数混合运算专项练习276题(有答案)

0.11×1.8+8.2×0.11  

2.34×99+2.34   

5.4÷2.7×0.8

132×101

6.25÷1.25÷0.8

2.5×16.

6.33×101﹣6.33

1.56×1.7+0.44×1.7

1.8×[(3.41﹣2.9)÷0.03]

0.125×32×2.5.

1.258×18.5﹣0.258×18.5

8.48÷0.8×0.9

1.25×2.4

5.85÷(1.3+0.5)×6.

17.17﹣6.8﹣3.2﹣6.17

5.4×[(1.3+2.15)÷0.2]

8.4÷0.6+8.4÷0.4

16.8×10.1

10.9﹣0.9÷0.2+1.8

1.25×3.2×0.25.

1.36+4.85+2.64+6.15

98.5÷2.5÷4

5.4÷[2.5×(3.7﹣2.9)]

0.8×(4﹣3.68)÷0.01

83.7﹣12.83﹣0.17

5.96+13×(3.2﹣3.12)

4.32÷2.4×1.7;

16.2×4.5+3.8×4.5;

9.05﹣3.86﹣3.14;

7.28+0.72÷0.9.

4.32+5.43+6.68

17.17﹣6.8﹣3.2

5.29×9+5.29

16.8×10.1

2.74×9.5+5×0.274

0.36+9.6÷3.2.

3.75×25+6.25×25

25.46﹣8.23﹣1.76

2.9+7.1×10

1.25×32×0.25.

15.68﹣(7.78﹣4.32)﹣2.32

0.25×3.2×1.25

9.99×1.01

4.63×1.4+46.3×0.86

17.5÷0.8÷12.5

0.9+9.9+99.9+999.9.

2.9×99+2.9

25×11.2×4

23.25﹣6.75﹣3.25.

125×3.2×2.5

3.6×10.1

5.8×2.7+0.58×73

3.6+6.4×1.8

(1.48+3.02)÷(3.6×0.5)

(36.7﹣4.9)×101﹣31.8. 

6.33×101﹣6.33

35.6﹣5×1.73

1.6×55.4﹣55.4×0.6

17.68÷5.2+2.7×1.5.

1.08×0.8÷0.27

102×0.45

22.78÷1.25÷0.8

0.34×101﹣0.34.

0.125×32×2.5

0.8×6.3﹣0.8×3.8

504÷3.2×2.08

(20﹣0.8×9)×5.7

2.4×1.5+3.6÷1.5

7.38﹣5.14+3.62﹣2.86

0.12×1.8+8.2×0.12

5.4÷[0.51÷(1.2﹣1.03)]

[(8.1﹣5.6)×0.9﹣1.05]÷0.04.

10.8﹣0.8÷(0.35+0.05)

8×[1÷(2.3﹣2.25)]

2.64×9.9+0.264  

4.52+0.61+1.39+6.48

4.27﹣(1.96﹣1.73)

(294.4﹣19.2×6)÷(6+8)

12.5×0.76×0.4×8×2.5.

4.98+8.02×2.5

60.8﹣40.8÷2.5

0.8×69.6×12.5

4.98×99+4.9

6.48÷3.2÷2.5

1.2×7.6+7.6×6.8. 

(9.4﹣5.8)×2.07

12.54﹣4.56﹣3.44﹣1.54

(9.36×5+9.36+9.36×2)×1.25

7.236÷0.18﹣14.3×0.02.

9.6÷0.4×0.25

29.7÷(5.85÷0.65)

7.4×9.9

3.84﹣2.7×0.64

8.68﹣8.68÷0.56×0.5

4.7×4.7+4.7+4.3×4.7.  

2.72÷[(8.2﹣6.5)×0.5];

9.12+9.12×9﹣60.2;

28.4÷0.4÷0.25;

27.36﹣27.36÷7.6.

3.25×0.45+6.75×0.45

31.5﹣24.5÷3.5

7.5×102

6.3+3.7×2.8.

2.15+8.73+1.27+7.85

11.87﹣(8.2+1.87)

5.42﹣3.87﹣1.13

4.38﹣1.56+0.62﹣0.44

0.4×270×2.

(40+1.25)×8

(12.5﹣0.05)×8

2.6×8.5+8.5×7.4

9.9×6.9﹣6.9×3.9

5.6×99+5.6

2.5×(1.9+1.9+1.9+1.9)

7.2÷1.25÷8. 

52.4﹣(15+0.6)÷1.6

9.87×99+9.87

46.8÷0.9÷0.4

5.5×17.3+6.7×5.5.

99×4.2+4.2

0.25×1.25×3.2

6.4×14+15×6.4+6.4

(1.3+1.3×0.125×8)÷(80﹣77.4)

4×(25+2.5+0.25)÷111

6.25÷〔(17.2﹣3.6×4.5)÷0.32〕 

28.4×99+28.4

0.94×2.5﹣0.45

4×0.8×12.5×2.5

17.5÷0.25×17+13.

10.1×87

2.3+3.19÷(22﹣19.8)

1.25×7.2.

9.1﹣1.2÷6﹣6.24

7.3+12.8﹣3.8×2.3

(5.36+7.64)÷13×100

7.575÷[(5.63﹣1.88)×0.2].

7.5﹣(5.5+1.24)

0.26+15.68+9.74+2.32

13.26+9.55﹣3.26

6.1+3.9﹣6.1+3.9.

31.7÷0.63(保留2位小数)

2.4×1.5+3.6÷1.5

0.32×0.25+0.08÷4

(9.6+1.48÷3.7)÷8

5.8÷[4×(1.34﹣0.14)]

5.4÷[0.51÷(1.2﹣1.03)].

21.35﹣3.25﹣16.75

33.02﹣(148.4﹣90.85)÷2.5

32×2.5×0.125

18.1+(3﹣0.299÷0.23)×1.

67﹣(2.98+0.67)

8×16﹣73.8×6

(45+14)÷73+710.

13.7×0.125×8

0.8×[13﹣(3.12+5.28)]

102×0.56

1.53×1.7+0.47×1.7.

5.18+0.73+0.82

0.75×1.8÷1.5

12.5×7.1×0.8

6.12×99+6.12

8.6÷0.86+8×0.35

5.6×(18.5﹣8.5÷0.5) 

0.125×4.78×80

2.8×3.6+1.4×2.8

(0.4+40)×2.5

78.7﹣17.7×3.6

18÷[0.3×(8﹣6.5)]

12.7+12.5+0.5.

91÷2.6÷0.05=

6.3×3.7+6.3×6.3=

(3.7+1.7×0.4)÷2.5=

7.28+3.2÷2.5=

0.74+0.9×7.4=

7.8÷0.125÷0.8=

37.5÷[0.3×(1.34﹣0.84)]

(2.5+27.75÷1.5)×1.6.

6.21﹣3.8+2.2

6.03+3.7+2.97

17.43﹣6.57﹣2.43

20.47﹣(1.47+6.8)

13.26+4.71+3.47+5.29

22.74+8.68﹣13.74. 

10÷0.2÷2.5

64×4.5+3.6×45

1.25×3.2×0.8

14.5×102

14.64+3.7×2.8

8.4÷0.21÷0.5.

0.125×9×8×0.3

4.62÷5÷0.66

5.78×2.3+5.78+5.78×6.7

7.75×[20÷(3.24﹣3.04)].

1.25×0.5×8×0.2

0.97×9+0.97

5.4÷[3×﹙3.8﹣2.9﹚].

0.4×(3.2﹣0.8)÷0.15

5.7+1.9×0.2÷7.6

32.4×6.3+32.4×3.7

18.2﹣10.6×(0.9﹣0.75)

0.25×3.85×40

1.46×3.5+3.5×4.54.

7×12.5×0.8

4.7×3.6+4.7×6.4

1.45×[(2.8+4.4)÷2.4]. 

4.2×(6.18﹣3.03)+6.3

15.02﹣6.8﹣(1.02+1.2 )

0.6×[(5﹣0.68)÷1.2]

2.7÷4+6.3×0.25

(6.02+2.8 )÷0.4﹣2.05

3.08×3.5+6.2×3.08+3.08×0.3.

2.3+3.91÷(22﹣19.7)

21.6÷[64.8﹣(48.6﹣2.7×2)]. 

93.6×3.6+1.4×3.6

0.25×0.8×0.125×0.4

2.7×1.5﹣2.7

9.08+5.45+11.92+4.55

1.25×30×1.2×0.8.

0.6+0.94﹣0.208

4.85×1.25×8

(64﹣22.4÷1.4)×1.2

18.3﹣6.25﹣3.75

2.8×3.6+1.4×2.8

6.6÷〔14.5﹣(1.7+1.8)〕 

0.25×9.87×4

36.7×2.1+10.8

8.45﹣0.45×0.1

0.73×102

7.8×5.6+2.3×4.4

76.3×27﹣76.3×17.

7.05×23.7+7.05×76.3.

[(7.6﹣5.2)÷0.4+2.54]×32.

17.68÷5.2+2.7×1.5

35.6﹣5×1.73

(1.1﹣0.78)×(2.7﹣1.95) 

1.3×0.75×4

1.08÷1.8×1.2

50.4×1.9﹣1.8

0.82×0.25+1.18×0.25.

8.5×[(2.36+2.42)÷0.25]

3.9÷[(1.3+0.6)×6﹣3.6]

4.25×6.3+3.7×4.25

205×0.99

25.6﹣7.49﹣2.51

[2.5﹣(6.8﹣4.9)]×0.8.

102×4.5

3.4÷[(1.2+0.5)×5]

8×(20﹣1.25)

0.654+10.9×6.5

22.7×1.25×0.8

3.91×2.8+6.09×2.8.

6.23+3.09=

132.4﹣59.8=

6.62×0.84=

2.07÷0.023= 

[20.026﹣(8.6+9.7)×0.92]÷30.19.

0.125×32×2.5

0.8×6.3﹣0.8×3.8

50.4÷3.2×2.08

204÷(3.4×0.5)

(43.26+2.34)÷7.5

(20﹣0.8×9)×5.7.

13.25﹣0.8+1.75﹣1.2;

2.5×99+2.5;

10.36+4.8﹣16.5÷5; 

12.5×2.4.

38.78﹣19.59+41.22﹣30.41

2.74×4.86+4.86×6.26+4.86

0.08×(12.5+2.5)×0.1

25.92+(10.1﹣14.5×0.2)

0.487×12.5÷48.7

(8.16+2.09)÷[(10.3﹣9.3)÷0.4].

1.56×1.7+0.44×1.7

12.5×(7.2﹣1.9)×0.8

0.25×2010+20.10×75

30.8÷[(6.34﹣4.59)×4].

参考答案:

(1)0.11×1.8+8.2×0.11,

=0.11×(1.8+8.2),

=0.11×10,

=1.1;

(2)2.34×99+2.34,

=2.34×(99+1),

=2.34×100,

=234;

(3)5.4÷2.7×0.8,

=2×0.8,

=1.6;

(4)132×101,

=132×(100+1),

=132×100+132,

=13332;

(5)6.25÷1.25÷0.8,

=6.25÷(1.25×0.8),

=6.25÷1,

=6.25;

(6)2.5×16,

=(2.5×4)×4,

=40

(7)6.33×101﹣6.33,

=6.33×(101﹣1),

=6.33×100,

=633;

(8)1.56×1.7+0.44×1.7,

=1.7×(1.56+0.44),

=1.7×2,

=3.4;

(9)1.8×[(3.41﹣2.9)÷0.03],

=1.8×[0.51÷0.03],

=1.8×17,

=30.6;

(10)0.125×32×2.5,

=(0.125×8)×(4×2.5),

=1×10,

=10

(11)1.258×18.5﹣0.258×18.5,

=18.5×(1.258﹣0.258),

=18.5×1,

=18.5;

(12)8.48÷0.8×0.9,

=10.6×0.9,

=9.54;

(13)1.25×2.4,

=1.25×8×0.3,

=10×0.3,

=3;

(14)5.85÷(1.3+0.5)×6,

=5.85÷1.8×6,

=3.25×6,

=19.5

(15)17.17﹣6.8﹣3.2﹣6.17

=(17.17﹣6.17)﹣(6.8+3.2),

=11﹣10,

=1;

(16)5.4×[(1.3+2.15)÷0.2]

=5.4×[3.45÷0.2],

=5.4×17.25,

=93.15;

(17)8.4÷0.6+8.4÷0.4

=14+21

=35;

(18)16.8×10.1

=16.8×10+16.8×0.1,

=168+1.68,

=169.68;

(19)10.9﹣0.9÷0.2+1.8

=10.9﹣4.5+1.8,

=8.2;

(20)1.25×3.2×0.25

=(1.25×0.8)×(4×0.25),

=1×1,

=1

(21)1.36+4.85+2.64+6.15,

=(1.36+2.64)+(4.85+6.15),

=4+11,

=15;

(22)98.5÷2.5÷4,

=98.5÷(2.5×4),

=98.5÷10,

=9.85;

(23)5.4÷[2.5×(3.7﹣2.9)],

=5.4÷[2.5×0.8],

=5.4÷2,

=2.7;

(24)0.8×(4﹣3.68)÷0.01,

=0.8×0.32÷0.01,

=0.256÷0.01,

=25.6;

(25)83.7﹣12.83﹣0.17,

=83.7﹣(12.83+0.17),

=83.7﹣13,

=70.7;

(26)5.96+13×(3.2﹣3.12),

=5.96+13×0.08,

=5.96+1.04,

=7.

(27)4.32÷2.4×1.7,

=1.8×1.7,

=3.06;

(28)16.2×4.5+3.8×4.5,

=(16.2+3.8)×4.5,

=20×4.5,

=90;

(29)9.05﹣3.86﹣3.14,

=9.05﹣(3.86+3.14),

=9.05﹣7,

=2.05;

(30)7.28+0.72÷0.9,

=7.28+0.8,

=8.08

(31)4.32+5.43+6.68,

=4.32+6.68+5.43,

=11+5.43,

=16.43;

(32)17.17﹣6.8﹣3.2,

=17.17﹣(6.8+3.2),

=17.17﹣10,

=7.17;

(33)5.29×9+5.29,

=5.29×(9+1),

=5.29×10,

=52.9;

(34)16.8×10.1,

=16.8×10+16.8×0.1,

=168+1.68,

=169.68;

(35)2.74×9.5+5×0.274,

=2.74×9.5+0.5×2.74,

=2.74×(9.5+0.5),

=2.74×10,

=27.4;

(36)0.36+9.6÷3.2,

=0.36+3,

=3.36

(37)3.75×25+6.25×25,

=25×(3.75+6.25),

=25×10,

=250;

(38)25.46﹣8.23﹣1.76,

=25.46﹣(8.23+1.76),

=25.46﹣9.99

=15.45;

(39)2.9+7.1×10,

=2.9+71,

=73.9;

(40)1.25×32×0.25

=(1.25×8)×(4×0.25),

=10×1,

=1.

(41)15.68﹣(7.78﹣4.32)﹣2.32,

=15.68﹣7.78+4.32﹣2.32,

=(15.68+4.32)﹣(7.78+2.32),

=20﹣10,

=10;

(42)0.25×3.2×1.25,

=0.25×4×0.8×1.25,

=(0.25×4)×(0.8×1.25),

=1×1,

=1;

(43)9.99×1.01,

=(10﹣0.01)×1.01,

=10.1﹣0.0101,

=10.0899;

(44)4.63×1.4+46.3×0.86,

=46.3×0.14+46.3×0.86,

=46.3×(0.14+0.86),

=46.3×1,

=46.3;

(45)17.5÷0.8÷12.5,

=17.5÷(0.8×12.5),

=17.5÷1,

=17.5;

(46)0.9+9.9+99.9+999.9,

=1﹣0.1+10﹣0.1+100﹣0.1+1000﹣0.1,

=(1+10+100+1000)﹣(0.1+0.1+0.1+0.1),

=1111﹣0.4,

=1110.6

(47)2.9×99+2.9

=(99+1)×2.9,

=100×2.9,

=290;

(48)25×11.2×4

=25×4×11.2,

=100×11.2,

=1120;

(49)23.25﹣6.75﹣3.25

=23.25﹣(6.75+3.25),

=23.25﹣10,

=13.25 (50)125×3.2×2.5,

=125×8×0.4×2.5,

=(125×8)×(0.4×2.5),

=1000×1,

=1000;

(51)3.6×10.1,

=3.6×(10+0.1),

=3.6×10+3.6×0.1,

=36+0.36,

=36.36;

(52)5.8×2.7+0.58×73,

=5.8×2.7+5.8×7.3,

=5.8×(2.7+7.3),

=5.8×10,

=58;

(53)3.6+6.4×1.8,

=3.6+11.52,

=15.12;

(54)(1.48+3.02)÷(3.6×0.5),

=4.5÷1.8,

=2.5;

(55)(36.7﹣4.9)×101﹣31.8,

=31.8×101﹣31.8,

=31.8×(101﹣1),

=31.8×100,

=3180

(56)6.33×101﹣6.33

=6.33×(101﹣1),

=6.33×100,

=633;

(57)35.6﹣5×1.73,

=35.6﹣8.65,

=26.95;

(58)1.6×55.4﹣55.4×0.6,

=55.4×(1.6﹣0.6),

=55.4×1,

=55.4;

(59)17.68÷5.2+2.7×1.5,

=3.4+4.05,

=7.45

(60)1.08×0.8÷0.27

=1.08÷0.27×0.8,

=4×0.8,

=3.2;

(61)102×0.45

=(100+2)×0.45,

=100×0.45+2×0.45,

=45+0.9,

=45.9;

(62)22.78÷1.25÷0.8

=22.78÷(1.25×0.8),

=22.78÷1,

=22.78;

(63)0.34×101﹣0.34

=(101﹣1)×0.34,

=100×0.34,

=34

(64)0.125×32×2.5,

=(0.125×8)×(4×2.5),

=1×10,

=10;

(65)0.8×6.3﹣0.8×3.8,

=0.8×(6.3﹣3.8),

=0.8×2.5,

=2;

(66)504÷3.2×2.08,

=157.5×2.08,

=327.6;

(67)(20﹣0.8×9)×5.7,

=(20﹣7.2)×5.7,

=12.8×5.7,

=72.96

(68)2.4×1.5+3.6÷1.5,

=3.6+2.4,

=6;

(69)7.38﹣5.14+3.62﹣2.86,

=(7.38+3.62)﹣(5.14+2.86),

=11﹣8,

=3;

(70)0.12×1.8+8.2×0.12,

=0.12×(1.8+8.2),

=0.12×10,

=1.2;

(71)5.4÷[0.51÷(1.2﹣1.03)],

=5.4÷[0.51÷0.17],

=5.4÷3,

=1.8;

(72)[(8.1﹣5.6)×0.9﹣1.05]÷0.04,

=[2.5×0.9﹣1.05]÷0.04,

=[2.25﹣1.05]÷0.04,

=1.2÷0.04,

=30

(73)10.8﹣0.8÷(0.35+0.05),

=10.8﹣0.8÷0.4,

=10.8﹣2,

=8.8;

(74)8×[1÷(2.3﹣2.25)],

=8×[1÷0.05],

=8×20,

=160;

(75)2.64×9.9+0.264,

=0.264×99+0.264,

=0.264×(99+1),

=0.264×100,

=26.4;

(76)4.52+0.61+1.39+6.48

=(4.52+6.48)+(0.61+1.39),

=11+2,

=13;

(77)4.27﹣(1.96﹣1.73)

=4.27﹣0.23,

=4.04;

(78)(294.4﹣19.2×6)÷(6+8)

=(294.4﹣115.2)÷14,

=179.2÷14,

=12.8;

(79)12.5×0.76×0.4×8×2.5

=(12.5×8)×(0.4×2.5)×0.76,

=100×1×0.76,

=76.

(80)4.98+8.02×2.5,

=4.98+20.25,

=25.03;

(81)60.8﹣40.8÷2.5,

=60.8﹣16.32,

=44.48;

(82)0.8×69.6×12.5,

=(0.8×12.5)×69.6,

=10×69.6,

=696;

(83)4.98×99+4.9,

=493.02+4.9,

=497.92;

(84)6.48÷3.2÷2.5,

=6.48÷(3.2×2.5),

=6.48÷8,

=0.81;

(85)1.2×7.6+7.6×6.8,

=7.6×(1.2+6.8),

=7.6×8,

=60.8 

(86)(9.4﹣5.8)×2.07,

=3.6×2.07,

=7.452;

(87)12.54﹣4.56﹣3.44﹣1.54,

=(12.54﹣1.54)﹣(4.56+3.44),

=11﹣8,

=3;

(88)(9.36×5+9.36+9.36×2)×1.25,

=9.36×(5+2+1)×1.25,

=9.36×8×1.25,

=9.36×(8×1.25),

=93.6;

(89)7.236÷0.18﹣14.3×0.02,

=40.2﹣0.286,

=39.914.

(90)9.6÷0.4×0.25,

=24×0.25,

=6;

(91)29.7÷(5.85÷0.65),

=29.7÷9,

=3.3;

(92)7.4×9.9,

=7.4×(10﹣0.1),

=7.4×10﹣7.4×0.1,

=74﹣0.74,

=73.26;

(93)3.84﹣2.7×0.64,

=3.84﹣1.728,

=2.112;

(94)8.68﹣8.68÷0.56×0.5,

=8.68﹣15.5×0.5,

=8.68﹣7.75,

=0.93;

(95)4.7×4.7+4.7+4.3×4.7,

=4.7×(4.7+4.3+1),

=4.7×10,

=47

(96)2.72÷[(8.2﹣6.5)×0.5]

=2.72÷[1.7×0.5],

=2.72÷0.85,

=3.2;

(97)9.12+9.12×9﹣60.2

=(1+9)×9.12﹣60.2,

=10×9.12﹣60.2,

=91.2﹣60.2,

=31;

(98)28.4÷0.4÷0.25

=28.4÷(0.4×0.25),

=28.4÷0.1,

=284;

(99)27.36﹣27.36÷7.6

=27.6﹣3.6,

=24

(100)3.25×0.45+6.75×0.45,

=0.45×(3.25+6.75),

=0.45×10,

=4.5;

(101)31.5﹣24.5÷3.5,

=31.5﹣7,

=24.5;

(102)7.5×102,

=7.5×(100+2),

=7.5×100+7.5×2,

=750+15,

=765;

(103)6.3+3.7×2.8,

=6.3+10.36,

=16.66.

(104)2.15+8.73+1.27+7.85

=(2.15+7.85)+(8.73+1.27),

=10+10,

=20;

(105)11.87﹣(8.2+1.87),

=11.87﹣1.87﹣8.2,

=10﹣8.2,

=1.8;

(106)5.42﹣3.87﹣1.13,

=5.42﹣5,

=0.42;

(107)4.38﹣1.56+0.62﹣0.44,

=(4.38+0.62)﹣(1.56+0.44),

=5﹣2,

=3;

(108)0.4×270×2.5,

=(0.4×2.5)×270,

=270;

(109)(40+1.25)×8,

=40×8+1.25×8,

=320+10,

=330;

(110)(12.5﹣0.05)×8,

=12.5×8﹣0.05×8,

=100﹣0.4,

=99.6;

(111)2.6×8.5+8.5×7.4,

=(2.6+7.4)×8.5,

=85;

(112)9.9×6.9﹣6.9×3.9,

=(9.9﹣3.9)×6.9,

=6×6.9,

=41.4;

(113)5.6×99+5.6,

=5.6×(99+1),

=560;

(114)2.5×(1.9+1.9+1.9+1.9),

=2.5×4×1.9,

=10×1.9,

=19;

(115)7.2÷1.25÷8,

=7.2÷8÷1.25,

=0.9÷1.25,

=0.72.

(116)52.4﹣(15+0.6)÷1.6,

=52.4﹣15.6÷1.6,

=52.4﹣9.75,

=42.65;

(117)9.87×99+9.87,

=9.87×(99+1),

=987;

(118)46.8÷0.9÷0.4,

=46.8÷(0.9×0.4),

=46.8÷0.36,

=130;

(119)5.5×17.3+6.7×5.5,

=5.5×(17.3+6.7),

=5.5×24,

=132

(120)99×4.2+4.2

=4.2×(99+1),

=4.2×100,

=420;

(121)0.25×1.25×3.2

=0.25×1.25×(4×0.8),

=0.25×4×(1.25×0.8),

=1×1,

=1;

(122)6.4×14+15×6.4+6.4

=6.4×(14+15+1),

=6.4×30,

=192;

(123)(1.3+1.3×0.125×8)÷(80﹣77.4)

=(1.3+1.3×1)÷2.6,

=2.6÷2.6,

=1;

(124)4×(25+2.5+0.25)÷111

=(4×25+4×2.5+4×0.25)÷111,

=(100+10+1)÷111,

=111÷111,

=1;

(125)6.25÷[(17.2﹣3.6×4.5)÷0.32]

=6.25÷[(17.2﹣16.2)÷0.32],

=6.25÷(1÷0.32),

=6.25÷3.125,

=2

(126)28.4×99+28.4,

=28.4×(99+1),

=28.4×100,

=2840.

(127)0.94×2.5﹣0.45,

=2.35﹣0.45,

=1.9.

(128)4×0.8×12.5×2.5,

=(4×2.5)×(0.8×12.5),

=10×10,

=100.

(129)17.5÷0.25×17+13,

=70×17+13,

=1190+13,

=1203

(130)10.1×87,

=(10+0.1)×87,

=87+8.7,

=95.7;

(131)2.3+3.19÷(22﹣19.8),

=2.3+3.19÷2.2,

=2.3+1.45,

=3.75;

(132)1.25×7.2,

=1.25×8×0.9,

=10×0.9,

=9

(133)9.1﹣1.2÷6﹣6.24

=9.1﹣0.2﹣6.24,

=8.9﹣6.24,

=2.66;

(134)7.3+12.8﹣3.8×2.3

=20.1﹣8.74,

=11.36;

(135)(5.36+7.64)÷13×100

=13÷13×100,

=100;

(136)7.575÷[(5.63﹣1.88)×0.2]

=7.575÷[3.75×0.2],

=7.575÷0.75,

=10.1

(137)7.5﹣(5.5+1.24),

=7.5﹣5.5﹣1.24,

=2﹣1.24,

=0.76;

(138)0.26+15.68+9.74+2.32,

=(0.26+9.74)+(15.68+2.32),

=10+18,

=28;

(139)13.26+9.55﹣3.26,

=13.26﹣3.26+9.55,

=10+9.55,

=19.55;

(140)6.1+3.9﹣6.1+3.9,

=6.1﹣6.1+(3.9+3.9),

=0+7.8,

=7.8

(141)31.7÷0.63≈50.32;

(142)2.4×1.5+3.6÷1.5

=3.6+2.4,

=6;

(143)0.32×0.25+0.08÷4

=0.08+0.08÷4,

=0.08+0.02,

=0.08+0.02,

=0.1;

(144)(9.6+1.48÷3.7)÷8

=(9.6+0.4)÷8,

=10÷8,

=1.25;

(145)5.8÷[4×(1.34﹣0.14)]

=5.8÷[4×1.2],

=5.8÷4.8,

≈1.21;

(146)5.4÷[0.51÷(1.2﹣1.03)]

=5.4÷[0.51÷0.17],

=5.4÷3,

=1.8

(147)21.35﹣3.25﹣16.75,

=21.35﹣(3.25+16.75),

=21.35﹣20,

=1.35;

(148)33.02﹣(148.4﹣90.85)÷2.5,

=33.02﹣57.55÷2.5,

=33.02﹣23.02,

=10;

(149)32×2.5×0.125,

=4×8×2.5×0.125,

=(4×2.5)×(8×0.125),

=10×1,

=10;

(150)18.1+(3﹣0.299÷0.23)×1,

=18.1+(3﹣1.3)×1,

=18.1+1.7×1,

=18.1+1.7,

=19.8

(151)67﹣(2.98+0.67),

=67﹣3.65,

=63.35;

(152)8×16﹣73.8×6,

=128+442.8,

=570.8;

(153)(45+14)÷73+710,

=59÷73+710,

=+710,

=710

(154)13.7×0.125×8,

=13.7×(0.125×8),

=13.7×1,

=13.7;

(155)0.8×[13﹣(3.12+5.28)],

=0.8×[13﹣8.4],

=0.8×4.6,

=3.68;

(156)102×0.56,

=(100+2)×0.56,

=100×0.56+2×0.56,

=56+1.12,

=57.12;

(157)1.53×1.7+0.47×1.7,

=(1.53+0.47)×1.7,

=2×1.7,

=3.4

(158)5.18+0.73+0.82,.

=(5.18+0.82)+0.73,

=6+0.73,

=6.73;

(159)0.75×1.8÷1.5,

=1.35÷1.5,

=0.9;

(160)12.5×7.1×0.8,

=(12.5×0.8)×7.1,

=10×7.1,

=71;

(160)6.12×99+6.12,

=6.12×(99+1),

=6.12×100,

=612;

(162)8.6÷0.86+8×0.35,

=10+2.8,

=12.8;

(163)5.6×(18.5﹣8.5÷0.5),

=5.6×(18.5﹣17),

=5.6×1.5,

=8.4

(164)0.125×4.78×80,

=0.125×4.78×8×10,

=(0.125×8)×(4.78×10),

=1×47.8,

=47.8;

(165)2.8×3.6+1.4×2.8,

=2.8×(3.6+1.4),

=2.8×5,

=14;

(166)(0.4+40)×2.5,

=0.4×2.5+40×2.5,

=1+100,

=101;

(167)78.7﹣17.7×3.6,

=78.7﹣63.72,

=14.98;

(168)18÷[0.3×(8﹣6.5)],

=18÷[0.3×1.5],

=18÷0.45,

=40;

(169)12.7+12.5+0.5,

=12.7+(12.5+0.5),

=12.7+13,

=25.7

(170)91÷2.6÷0.05,

=35÷0.05,

=700;

(171)6.3×3.7+6.3×6.3,

=6.3×(3.7+6.3),

=6.3×10,

=63;

(172)(3.7+1.7×0.4)÷2.5,

=(3.7+0.68)÷2.5,

=4.38÷2.5,

=1.752;

(173)7.28+3.2÷2.5,

=7.28+1.28,

=8.56;

(174)0.74+0.9×7.4,

=(1+9)×0.74,

=10×0.74,

=7.4;

(175)7.8÷0.125÷0.8,

=7.8÷(0.125×0.8),

=7.8÷0.1,

=78

(176)37.5÷[0.3×(1.34﹣0.84)],

=37.5÷[0.3×0.5],

=37.5÷0.15,

=250;

(177)(2.5+27.75÷1.5)×1.6,

=(2.5+18.5)×1.6,

=21×1.6,

=33.6

(178)6.21﹣3.8+2.2,

=2.41+2.2,

=4.61;

(179)6.03+3.7+2.97,

=(6.03+2.97)+3.7,

=9+3.7,

=12.7;

(180)17.43﹣6.57﹣2.43,

=17.43﹣(6.57+2.43),

=17.43﹣9,

=8.43;

(181)20.47﹣(1.47+6.8),

=20.47﹣1.47﹣6.8,

=19﹣6.8,

=12.2;

(182)13.26+4.71+3.47+5.29,

=(13.26+3.47)+(4.71+5.29),

=16.73+10,

=26.73;

(183)22.74+8.68﹣13.74,

=(22.74﹣13.74)+8.68,

=9+8.68,

=17.68

(184)10÷0.2÷2.5,

=10÷(0.2×2.5),

=10÷0.5,

=20;

(185)64×4.5+3.6×45,

=6.4×45+3.6×45,

=(6.4+3.6)×45,

=10×45,

=450;

(186)1.25×3.2×0.8,

=(1.25×0.8)×3.2,

=1×3.2,

=3.2;

(187)14.5×102,

=14.5×(100+2),

=14.5×100+14.5×2,

=1450+29,

=1479;

(188)14.64+3.7×2.8,

=14.64+10.36,

=25;

(189)8.4÷0.21÷0.5,

=40÷0.5,

=80

(190)0.125×9×8×0.3,

=(0.125×8)×(9×8),

=1×72,

=72;

(191)4.62÷5÷0.66,

=4.62÷(5×0.66),

=4.62÷3.3,

=1.4;

(192)5.78×2.3+5.78+5.78×6.7,

=5.78×(2.3+1+6.7),

=5.78×10,

=57.8;

(193)7.75×[20÷(3.24﹣3.04)],

=7.75×[20÷0.2],

=7.75×100,

=775

(194)1.25×0.5×8×0.2,

=(1.25×8)×(0.5×0.2),

=10×0.1,

=1;

(195)0.97×9+0.97,

=0.97×(9+1),

=0.97×10,

=9.7;

(196)5.4÷[3×﹙3.8﹣2.9﹚],

=5.4÷[3×0.9],

=5.4÷2.7,

=2 (197)0.4×(3.2﹣0.8)÷0.15,

=0.4×2.4÷0.15,

=0.96÷0.15,

=6.4;

(198)5.7+1.9×0.2÷7.6,

=5.7+0.38÷7.6,

=5.7+0.05,

=5.75;

(199)32.4×6.3+32.4×3.7,

=32.4×(6.3+3.7),

=32.4×10,

=324;

(200)18.2﹣10.6×(0.9﹣0.75),

=18.2﹣10.6×0.15,

=18.2﹣1.59,

=16.61;

(201)0.25×3.85×40,

=0.25×40×3.85,

=10×3.85,

=38.5;

(202)1.46×3.5+3.5×4.54,

=3.5×(1.46+4.54),

=3.5×6,

=21

(203)7×12.5×0.8,

=7×(12.5×0.8),

=7×10,

=70;

(204)4.7×3.6+4.7×6.4,

=4.7×(3.6+6.4),

=4.7×10,

=47;

(205)1.45×[(2.8+4.4)÷2.4],

=1.45×[7.2÷2.4],

=1.45×3,

=4.35

(206)4.2×(6.18﹣3.03)+6.3,

=4.2×3.15+6.3,

=13.23+6.3,

=19.53;

(207)15.02﹣6.8﹣(1.02+1.2 ),

=15.02﹣6.8﹣1.02﹣1.2,

=(15.02﹣1.02)﹣(6.8+1.2),

=14﹣8,

=6;

(208)0.6×[(5﹣0.68)÷1.2],

=0.6×[4.32÷1.2],

=0.6×3.6,

=2.16;

(209)2.7÷4+6.3×0.25,

=2.7×0.25+6.3×0.25,

=(2.7+6.3)×0.25,

=9×0.25,

=2.25;

(210)(6.02+2.8 )÷0.4﹣2.05,

=8.82÷0.4﹣2.05,

=22.05﹣2.05,

=20;

(211)3.08×3.5+6.2×3.08+3.08×0.3,

=(3.5+6.2+0.3)×3.08,

=10×3.08,

=30.8

(212)2.3+3.91÷(22﹣19.7),

=2.3+3.91÷2.3,

=2.3+1.7,

=4;

(213)21.6÷[64.8﹣(48.6﹣2.7×2)],

=21.6÷[64.8﹣(48.6﹣5.4)],

=21.6÷[64.8﹣43.2],

=21.6÷21.6,

=1

(214)93.6×3.6+1.4×3.6,

=(93.6+1.4)×3.6,

=95×3.6,

=(100﹣5)×3.6,

=100×3.6﹣5×3.6,

=360﹣18,

=342;

(215)0.25×0.8×0.125×0.4,

=(0.25×0.4)×(0.8×0.125),

=0.1×0.1,

=0.01;

(216)2.7×1.5﹣2.7,

=2.7×(1.5﹣1),

=2.7×0.5,

=1.35;

(217)9.08+5.45+11.92+4.55,

=(9.08+11.92)+(5.45+4.55),

=21+10,

=31;

(218)1.25×30×1.2×0.8,

=(1.25×0.8)×(30×1.2),

=1×36,

=36

(219)0.6+0.94﹣0.208,

=1.54﹣0.208,

=1.332;

(220)4.85×1.25×8,

=4.85×(1.25×8),

=4.85×10,

=48.5;

(221)(64﹣22.4÷1.4)×1.2,

=(64﹣16)×1.2,

=48×1.2,

=57.6;

(222)18.3﹣6.25﹣3.75,

=18.3﹣(6.25+3.75),

=18.3﹣10,

=8.3;

(223)2.8×3.6+1.4×2.8,

=2.8×(3.6+1.4),

=2.8×5,

=14;

(224)6.6÷[14.5﹣(1.7+1.8)],

=6.6÷[14.5﹣3.5],

=6.6÷11,

=0.6

(225)0.25×9.87×4,

=0.25×4×9.87,

=1×9.87,

=9.87;

(226)7×2.1+10.8,

=77.07+10.8,

=87.87;

(227)8.45﹣0.45×0.1,

=8.45﹣0.045,

=8.405;

(228)0.73×102,

=0.73×(100+2),

=0.73×100+0.73×2,

=73+1.46,

=74.46;

(229)7.8×5.6+2.3×4.4,

=43.68+10.12,

=53.8;

(230)76.3×27﹣76.3×17

=76.3×(27﹣17),

=76.3×10,

=763.

(231)7.05×23.7+7.05×76.3

=(23.7+76.3)×7.05,

=100×7.05,

=705

(232)[(7.6﹣5.2)÷0.4+2.54]×32,

=[2.4÷0.4+2.54]×32,

=[6+2.54]×32,

=8.54×32,

=273.28

(233)17.68÷5.2+2.7×1.5,

=3.4+4.05,

=7.45;

(234)35.6﹣5×1.73,

=35.6﹣8.65,

=26.95;

(235)(1.1﹣0.78)×(2.7﹣1.95),

=0.32×0.75,

=0.24

(236)1.3×0.75×4,

=1.3×3×0.25×4,

=1.3×3×(0.25×4),

=3.9×1,

=3.9;

(237)1.08÷1.8×1.2,

=0.6×1.2,

=0.72;

(238)50.4×1.9﹣1.8,

=95.76﹣1.8,

=93.96;

(239)0.82×0.25+1.18×0.25,

=(0.82+1.18)×0.25,

=2×0.25,

=0.5

(240)8.5×[(2.36+2.42)÷0.25],

=8.5×[4.78÷0.25],

=8.5×19.12,

=162.52;

(241)3.9÷[(1.3+0.6)×6﹣3.6],

=3.9÷[1.3×0.6+0.6×6﹣3.6],

=3.9÷[0.78+3.6﹣3.6],

=3.9÷0.78,

=5;

(242)4.25×6.3+3.7×4.25,

=4.25×(6.3+3.7),

=4.25×10,

=42.5;

(243)205×0.99,

=205×(1﹣0.01),

=205×1﹣205×0.01,

=205﹣2.05,

=202.95;

(244)25.6﹣7.49﹣2.51,

=25.6﹣(7.49+2.51),

=25.6﹣10,

=15.6;

(245)[2.5﹣(6.8﹣4.9)]×0.8,

=[2.5﹣1.9]×0.8,

=0.6×0.8,

=0.48

(246)102×4.5,

=(100+2)×4.5,

=100×4.5+2×4.5,

=450+9,

=459;

(247)3.4÷[(1.2+0.5)×5],

=3.4÷[1.7×5],

=3.4÷8.5,

=0.4;

(248)8×(20﹣1.25),

=8×20﹣8×1.25,

=160﹣10,

=150;

(249)0.654+10.9×6.5,

=0.654+70.85,

=71.504;

(250)22.7×1.25×0.8,

=22.7×(1.25×0.8),

=22.7×1,

=22.7;

(251)3.91×2.8+6.09×2.8,

=(3.91+6.09)×2.8,

=10×2.8,

=28

(252)6.23+3.09=9.32,

6.23

(253)132.4﹣59.8=72.6;

132.4

(254)6.62×0.84=5.5608;

6.62

(255)2.07÷0.023=90;

(256)[20.026﹣(8.6+9.7)×0.92]÷30.19,

=[20.026﹣18.3×0.92]÷30.19,

=[20.026﹣16.836]÷30.19,

=3.19÷30.19,

=.

(257)0.125×32×2.5,

=0.125×8×4×2.5,

=(0.125×8)×(4×2.5),

=1×10,

=10;

(258)0.8×6.3﹣0.8×3.8,

=(6.3﹣3.8)×0.8,

=2.5×0.8,

=2;

(259)50.4÷3.2×2.08,

=15.75×2.08,

=32.76;

(260)204÷(3.4×0.5),

=204÷1.7,

=120;

(261)(43.26+2.34)÷7.5,

=45.6÷7.5,

=6.08;

(262)(20﹣0.8×9)×5.7,

=(20﹣7.2)×5.7,

=12.8×5.7,

=72.96 

(263)13.25﹣0.8+1.75﹣1.2,

=(13.25+1.75)﹣(1.2+0.8),

=15﹣2,

=13;

(264)2.5×99+2.5,

=2.5×(99+1),

=2.5×100,

=250;

(265)10.36+4.8﹣16.5÷5,

=10.36+4.8﹣3.3,

=15.16﹣3.3,

=11.86;

(266)12.5×2.4,

=12.5×(8×0.3),

=(12.5×8)×0.3,

=100×0.3,

=30

(267)38.78﹣19.59+41.22﹣30.41,

=38.78+41.22﹣19.59﹣30.41,

=(38.78+41.22)﹣(19.59+30.41),

=80﹣50,

=30;

(268)2.74×4.86+4.86×6.26+4.86,

=(2.74+6.26+1)×4.86,

=10×4.86,

=48.6;

(269)0.08×(12.5+2.5)×0.1,

=(0.08×12.5+0.08×2.5)×0.1,

=(1+0.2)×0.1,

=1.2×0.1,

=0.12;

(270)25.92+(10.1﹣14.5×0.2),

=25.92+(10.1﹣2.9),

=25.92+7.2,

=33.12;

(271)0.487×12.5÷48.7,

=0.487÷48.7×12.5,

=0.01×12.5,

=0.125;

(272)(8.16+2.09)÷[(10.3﹣9.3)÷0.4],

=10.25÷[1÷0.4],

=10.25÷2.5,

=4.1

(273)1.56×1.7+0.44×1.7,

=(1.56+0.44)×1.7,

=2×1.7,

=3.4;

(274)12.5×(7.2﹣1.9)×0.8,

=12.5×5.3×0.8,

=12.5×0.8×5.3,

=10×5.3,

=53;

(275)0.25×2010+20.10×75,

=0.25×2010+2010×0.75,

=2010×(0.25+0.75),

=2010×1,

=2010;

(276)30.8÷[(6.34﹣4.59)×4],

=30.8÷[1.75×4],

=30.8÷7,

=4.4.

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