小数乘除法计算题及答案.doc

小数乘除法计算题及答案.doc

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小数乘除法计算题

85.44÷1642.84÷7101.7÷967.5÷15230.4÷6

5.346.1211.34.538.4

21.24÷360.736÷2343.5÷1235.21÷739.6÷24

0.590.0323.6255.031.65

6.21÷0.03210÷1.451.3÷0.2791.2÷3.80.756÷0.18

207 150190244.2

0.66÷0.311.97÷1.569.6÷2.938.4÷0.815÷0.06

2.27.982.448250

5.6×2.93.77×1.80.02×965.22×0.39.99×0.02

16.246.7861.921.5660.1998

4.67×0.95×2.441.666×6.19.432×0.0025.6×6.5

4.20312.210.16260.01886436.4

4.88×2.95.61×4.38.9×2.45.5×559.77×0.02

14.15224.12321.36302.50.1954

1.384×5.18.78×832.6×610.059×0.24.268×1.7

7.0584728.74158.60.01187.2556

57×5.79.46×2.8517.8×6.41.5×4.92.5×0.88

324.9 26.961113.927.352.2

5.555×5.22.22×3.337.658×8536.02×0.356.78×8

28.886 7.3926650.9310.806454.24

（循环小数的用简便方法，除不尽保留2位小数）：

8.2÷0.120.8÷0.976.4÷5.44.7÷31.25÷1.2

68.33 0.8914.15 1.571.04

32÷4214.36÷2.78.33÷6.21.7÷0.032.41÷0.7

0.765.321.3456.673.44

用竖式计算

0.396÷1.2=0.756÷0.36=15.6×13=0.18×15=

0.332.1202.82.7

0.025×14=3.06×36=0.04×0.12＝3.84×2.6≈

0.35110.160.00489.984

5.76×3＝7.15×2290.75÷3.33.68×0.25

17.28157.327.50.92

16.9÷0.131.55÷3.93.7×0.01613.76×0.8=

1300.397 0.0592 11.008

5.2×0.68.4×1.36.4×0.54.48×0.4

3.1210.923.21.792

5.25×535.4×4.20.042×0.540.76×0.32

26.25148.680.022680.2432

0.25×0.0462.52×3.41.08×250.12×0.5×0.16＝

0.01158.568270.0096

4.8×0.25＝0.125×1.4≈（保留两位小数）

1.2 0.18

2.5÷0.7=（保留三位小数）10.1÷3.3=（商用循环小数）

3.5713.06060606......

10.75÷12.5=（用乘法验算）3.25×9.04=（用除法验算）

0.86 29.38

3、脱式计算（能简算的要简算）

2.5×7.1×416.12×99＋16.125.2×0.9＋0.9

7116125.58

7.28×99+7.284.3×50×0.264－2.64×0.5

7284362.68

26×15.7＋15.7×24（2.275＋0.625）×0.283.94+34.3×0.2

7850.81210.8

1.2×（9.6÷2.4）÷4.88.9×1.1×4.72.7×5.4×3.93.6×9.85-5.46

146.01356.86230

8.05×3.4+7.66.58×4.5×0.92.8×0.5+1.58

34.9726.6492.98

32＋4.9－0.94.8－4.8×0.5（1.25－0.125）×8

362.49

4.8×100.156.5×99＋56.57.09×10.8－0.8×7.09

480.48565070.9

4.85+0.35÷1.48.7×17.4-8.7×7.412.5×0.4×2.5×8

5.187100

0.87×3.16+4.649.5×1010.68÷（5.2-3.5）×1.25

7.3892959.50.5

40.5÷0.81×0.184.8×（15÷2.4）

930

6.81+6.81×990.25×185×404.4×0.8－3.4×0.8

68118500.8

（9.37+9.37+9.37+9.37）×2．52.37×6.3+2.37×3.7

93.723.7

2.5×1.25×0.323.8×10.12.5×（3.8×0.04）7.69×101

138.380.38776.69

3.8×10.10.25×39+0.250.125×7246×0.33+54×0.33

38.3810933

（8×5.27）×1.256.81+6.81×990.25×185×40

52.76811850

6.8×0.75÷0.53.75÷0.125–2.751.53+23.4÷7.2

10.22