2024年4月7日发(作者：)

小数四则混合运算专项练习题能简便的要

简便

1.0.11乘以1.8再加上8.2乘以0.11.

2.2.34乘以99再加上2.34.

3.5.4除以2.7再乘以0.8.

4.132乘以101.

5.6.25除以1.25再除以0.8.

6.2.5乘以16.

7.6.33乘以101减去6.33.

8.1.56乘以1.7再加上0.44乘以1.7.

9.1.8乘以[(3.41减去2.9)除以0.03]。

10.0.125乘以32乘以2.5.

11.1.258乘以18.5减去0.258乘以18.5.

12.8.48除以0.8再乘以0.9.

13.1.25乘以2.4.

14.5.85除以(1.3加上0.5)再乘以6.

15.17.17减去6.8减去3.2减去6.17.

16.5.4乘以[(1.3加上2.15)除以0.2]。

17.8.4除以0.6再加上8.4除以0.4.

18.16.8乘以10.1.

19.10.9减去0.9除以0.2再加上1.8.

20.1.25乘以3.2乘以0.25.

21.1.36加上4.85加上2.64加上6.15.

22.98.5除以2.5除以4.

23.5.4除以[2.5乘以(3.7减去2.9)]。

24.0.8乘以(4减去3.68)除以0.01.

25.83.7减去12.83减去0.17.

26.5.96加上13乘以(3.2减去3.12)。

27.4.32除以2.4再乘以1.7.

28.16.2乘以4.5再加上3.8乘以4.5.

29.9.05减去3.86减去3.14.

30.7.28加上0.72除以0.9.

31.4.32加上5.43加上6.68.

32.17.17减去6.8减去3.2.

33.5.29乘以9再加上5.29.

34.16.8乘以10.1.

35.2.74乘以9.5再加上5乘以0.274.

36.0.36加上9.6除以3.2.

37.3.75乘以25再加上6.25乘以25.

38.25.46减去8.23减去1.76.

39.2.9加上7.1乘以10.

40.1.25乘以32乘以0.25.

41.15.68减去(7.78减去4.32)减去2.32.

42.0.25乘以3.2乘以1.25.

43.9.99乘以1.01.

44.4.63乘以1.4再加上46.3乘以0.86.

45.17.5除以0.8除以12.5.

46.0.9加上9.9加上99.9加上XXX。

47.2.9乘以99再加上2.9.

48.25乘以11.2乘以4.

49.23.25减去6.75减去3.25.

50.125乘以3.2乘以2.5.

51.3.6乘以10.1.

52.计算5.8×2.7+0.58×73.

53.计算3.6+6.4×1.8.

54.计算（1.48+3.02）÷（3.6×0.5）。

55.计算（36.7-4.9）×101-31.8.

56.计算6.33×101-6.33.

57.计算35.6-5×1.73.

58.计算1.6×55.4-55.4×0.6.

59.计算17.68÷5.2+2.7×1.5.

60.计算1.08×0.8÷0.27.

61.计算102×0.45.

62.计算22.78÷1.25÷0.8.

63.计算0.34×101-0.34.

64.计算0.125×32×2.5.

65.计算0.8×6.3-0.8×3.8.

66.计算504÷3.2×2.08.

67.计算（20-0.8×9）×5.7.

68.计算2.4×1.5+3.6÷1.5.

69.计算7.38-5.14+3.62-2.86.

70.计算0.12×1.8+8.2×0.12.

71.计算5.4÷[0.51÷（1.2-1.03）]。

72.计算[（8.1-5.6）×0.9-1.05]÷0.04.

73.计算10.8-0.8÷（0.35+0.05）。

74.计算8×[1÷（2.3-2.25）]。

75.计算2.64×9.9+0.264.

76.计算4.52+0.61+1.39+6.48.

77.计算4.27-（1.96-1.73）。

78.计算（294.4-19.2×6）÷（6+8）。

79.计算12.5×0.76×0.4×8×2.5.

80.计算4.98+8.02×2.5.

81.计算60.8-40.8÷2.5.

82.计算0.8×69.6×12.5.

83.计算4.98×99+4.9.

84.计算6.48÷3.2÷2.5.

85.计算1.2×7.6+7.6×6.8.

86.计算（9.4-5.8）×2.07.

87.计算12.54-4.56-3.44-1.54.

88.计算（9.36×5+9.36+9.36×2）×1.25.

89.计算7.236÷0.18-14.3×0.02.

90.计算9.6÷0.4×0.25.

91.计算29.7÷（5.85÷0.65）。

92.计算7.4×9.9.

93.计算3.84-2.7×0.64.

94.计算8.68-8.68÷0.56×0.5.

95.计算4.7×4.7+4.7+4.3×4.7.

96.计算2.72÷[（8.2-6.5）×0.5]。

97.计算9.12+9.12×9-60.2.

98.计算28.4÷0.4÷0.25.

27.36 - 27.36 ÷ 7.6

To solve this problem。we need to follow the order of ns。

which is parentheses。exponents。n and n (from left to right)。

and n and n (from left to right)。There are no XXX in this

problem。so we start with XXX ÷ 7.6 is approximately equal to

we can rewrite the problem as 27.36 - y。we

subtract 3.6 from 27.36 to get the answer: 23.76.

3.25 × 0.45 + 6.75 × 0.45

To solve this problem。we can use the XXX。We can

rewrite the problem as (3.25 + 6.75) × 3.25 and 6.75

gives us we can simplify the problem to 10 ×

lying 10 by 0.45 gives us XXX: 4.5.

31.5 - 24.5 ÷ 3.5

To solve this problem。we again need to follow the order of

ns。There are no parentheses or exponents。so we start with n。

24.5 ÷ 3.5 is approximately equal to we can rewrite the

problem as 31.5 - y。we subtract 7 from 31.5 to get the

answer: 24.5.

7.5 × 102

XXX a number by simply add two zeros to the end of

the number。Therefore。7.5 × 102 is equal to 750.

6.3 + 3.7 × 2.8

To solve this problem。we again need to follow the order of

ns。There are no parentheses or exponents。so we start with XXX。

3.7 × 2.8 is approximately equal to we can rewrite the

problem as 6.3 + y。we add 6.3 and 10.36 to get the

answer: 16.66.

2.15 + 8.73 + 1.27 + 7.85

To solve this problem。we simply add the numbers together。

Adding 7.85 gives us the answer: 20.

11.87 - (8.2 + 1.87)

To solve this problem。we need to start with the parentheses。

Adding 8.2 and 1.87 gives us we can rewrite the problem

as 11.87 - y。we subtract 10.07 from 11.87 to get the

answer: 1.8.

5.42 - 3.87 - 1.13

To solve this problem。we simply subtract each number from

the us result。Subtracting 3.87 from 5.42 gives us

subtracting 1.13 from 1.55 gives us ore。the answer is

0.42.

4.38 - 1.56 + 0.62 - 0.44

XXX problem。XXX。Adding -0.44 gives us

subtracting 1.56 from 4.56 gives us ore。the

answer is 3.

0.4 × 270 × 2

XXX。XXX and 270 gives us multiplying 108 by 2

gives us the answer: 216.

40 + 1.25) × 8

To solve this problem。we start with the parentheses。

Adding 40 and 1.25 gives us we can rewrite the problem

as 41.25 × y。we multiply 41.25 by 8 to get the answer:

330.

12.5 - 0.05) × 8

To solve this problem。we start with the XXX 0.05 from 12.5

gives us we can rewrite the problem as 12.45 × y。

we multiply 12.45 by 8 to get the answer: 99.6.

2.6 × 8.5 + 8.5 × 7.4

To solve this problem。we can use the XXX。We can

rewrite the problem as 2.6 × (8.5 + 8.5) + 8.5 × 8.5 and

8.5 gives us we can simplify the problem to 2.6 × 17 + 8.5 ×

lying 2.6 by 17 gives us multiplying 8.5 by 7.4

gives us y。we add 44.2 and 62.9 to get the answer:

107.1.

9.9 × 6.9 - 6.9 × 3.9

To solve this problem。we can use the XXX。We can

rewrite the problem as 6.9 × (9.9 - 3.9)。Subtracting 3.9 from 9.9

gives us we can simplify the problem to 6.9 × lying

6.9 by 6 gives us the answer: 41.4.

5.6 × 99 + 5.6

To solve this problem。we simply multiply 5.6 by 99 and

then add lying 5.6 by 99 gives us adding 5.6

gives us the answer: 560.

2.5 × (1.9 + 1.9 + 1.9 + 1.9)

To solve this problem。we start with the parentheses。

Adding 1.9 gives us we can rewrite the

problem as 2.5 × y。we multiply 2.5 by 7.6 to get the

answer: 19.

7.2 ÷ 1.25 ÷ 8

To solve this problem。we need to follow the order of ns。

There are no parentheses or exponents。so we start with n。7.2 ÷

1.25 is equal to we can rewrite the problem as 5.76 ÷

y。we divide 5.76 by 8 to get the answer: 0.72.

52.4 - (15 + 0.6) ÷ 1.6

To solve this problem。we start with the parentheses。

Adding 15 and 0.6 gives us we can rewrite the problem as

52.4 - 15.6 ÷ ng 15.6 by 1.6 gives us we can

simplify the problem to 52.4 - y。we subtract 9.75 from

52.4 to get the answer: 42.65.

9.87 × 99 + 9.87

To solve this problem。we simply multiply 9.87 by 99 and

then add lying 9.87 by 99 gives us adding

9.87 gives us the answer: 987.

46.8 ÷ 0.9 ÷ 0.4

To solve this problem。we need to follow the order of ns。

There are no XXX。so we start with n。46.8 ÷ 0.9 is equal to

we can rewrite the problem as 52 ÷ y。we divide

52 by 0.4 to get the answer: 130.

5.5 × 17.3 + 6.7 × 5.5

To solve this problem。we simply multiply each number by

the corresponding factor and then add the results together。

Multiplying 5.5 by 17.3 gives us multiplying 6.7 by 5.5

gives us y。we add 95.15 and 36.85 to get the answer:

132.

99 × 4.2 + 4.2

To solve this problem。we simply multiply 99 by 4.2 and

then add lying 99 by 4.2 gives us adding 4.2

gives us the answer: 420.

0.25 × 1.25 × 3.2

To solve this problem。we XXX。 3.2 gives us the

answer: 1.

6.4 × 14 + 15 × 6.4 + 6.4

To solve this problem。we simply multiplyXXX 6.4 by 14

gives us lying 15 by 6.4 gives us adding 89.6

and 96 gives us y。we add 185.6 and 6.4 to get the

answer: 192.

1.3 + 1.3 × 0.125 × 8) ÷ (80 - 77.4)

To solve this problem。we start with the XXX 1.3 by 0.125

gives us multiplying 0.1625 by 8 gives us we

can rewrite the problem as (1.3 + 1.3) ÷ (80 - 77.4)。Adding 1.3

and 1.3 gives us subtracting 77.4 from 80 gives us

we can simplify the problem to 2.6 ÷ y。we divide 2.6

by 2.6 to get the answer: 1.