完整版小数简便计算练习题400道.docx

完整版小数简便计算练习题400道.docx

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完整版小数简便计算练习题400道

小数简便计算练习一

3.2＋0.36＋4.8＋1.640.45＋6.22＋3.786.9＋4.8＋3.14.02＋5.4＋0.98

1.29＋3.7＋2.71＋6.30.39+0.36+3.64 73.8－1.64－13.8－5.365.17－1.8－3.2

7.14－0.53－2.4735.6－1.8－15.6－7.266.86－8.66－1.3436.8－3.9－6.1

7.85＋2.34－0.85＋4.6613.35－4.68＋2.659.6＋4.8－3.65.27＋2.86－0.66＋1.63

3.68＋7.56－2.6847.8－7.45－8.8 3.82＋2.9＋0.18＋9.11.27+3.9+0.73+16.1

1.57+0.24+7.432.64＋8.67＋7.36＋11.330.13+2.66+0.871.76+0.19+3.24

23.4－0.8－13.4－7.215.02-6.8-1.028－2.45－1.553.25＋1.79－0.59＋1.75

1.23＋3.4－0.23＋6.67.5＋4.9－6.513.75－（3.75＋6.48）15.89＋（6.75－5.89）

12.7－（3.7＋0.84）2.35+1.71+0.29+7.654.8+8.63+5.2+0.375.93+0.19+2.81

小数简便计算练习二

3.6－1.28＋3.4       4.32－（1.32＋2.34）       2.5＋3.25＋0.75＋7.54－1.4－1.6      

3.2＋9.4＋6.814.3－5.6－4.314.15＋5.87＋5.85 21.07－5.6－11.07

8.07－5.8 ＋0.9328.93－7.46－5.54     6.38＋5.4＋4.6＋3.628.6－2.11＋2.4－3.89

12.6－3.28＋7.4－5.72    15.047＋8.92－5.04780－（8.24－6.3＋1.76） 4.8+2.5-1.8       

27.62－（7.62＋4.85） 53.8+61.3-23.812.68-4.69+1.3211.74+（8.06-5.8）

94.13-（28.9-1.87）25.3+6.9+13.16.32-1.94+12.6825.14-13.49-6.51

36.28-（25.7+6.28）1-0.45-0.5513.27-（2.46+5.27）2.54-8.16+9.46+9.16

8.56+7.5+2.44-2.525.403-（5.403+12.5）18.3+2.55+21.7+1.4573.26-（18.9+3.26）

12.92+2.8+6.08+7.227.3+73.2+72.72.54-0.7-0.5472.81-8.6+5.19

小数简便计算练习三

72.43-（6.8+12.43）0.6+7.91+3.4+0.0928.5-（2.1-0.63-0.37）100-36.83-47.17

89.45+2.97-6.457.5+8.3+1.7+2.52.07+4.58+0.93+5.4256.12-23.18-16.12

8.57-2.47+3.43+5.4715.8-（5.8+7.4）15.25-3.1+0.75-4.93.45+8.7+16.55+0.3

8.43+2.97+0.57+0.035.02-3.5+0.98     2.88+2.3+4.7      36.78-21.45-13.55

3.8+1.37+6.2+12.63     17.05－（2.05－6.4）     3.73+5.28+4.27+4.721.88+2.3+3.7

5.17-1.8-3.2 4.02-3.5+0.98  13.7+0.98+0.02+4.342.5－22.17－7.83

3.8-0.46-1.545.02-3.5+0.98     2.88+2.3+4.7      36.78-21.45-13.55

74+2.7+2.3+26     14.7+1.98+0.02+5.3   15.4+2.7-14.425.4-15.3+7.7

5.85+1.89+2.15         24.8+14.6+15.4         5.85－1.75－0.2527.3+73.2+72.7

小数简便计算练习四

42.5－22.17－7.833.8+1.37+6.2+12.63   15.28+28.99+20.729.42-4.98+0.58

10－0.43－2.5714.9－（5.2＋4.9）4.37＋0.28＋1.63＋5.7211.26+6.49-5.26

8.42+8.46+8.54+8.58 6.9＋4.8＋3.1      0.45＋6.22＋3.78     15.89＋（6.75－5.89）

3.68＋7.56－2.68       7.85＋2.34－0.85＋4.66   35.6－1.8－15.6－7.2

5.27＋2.86－0.66＋1.63    13.35－4.68＋2.65     73.8－1.64－13.8－5.36 

25.48－（9.4－0.52）      8.9－4.1＋6.1－5.9       15.02-6.8-1.025.93+0.19+2.07 

4.8+8.63+5.2+0.37        1.76+0.19+3.241.27+3.9+0.73+16.1     7.5＋4.9－6.5

0.12+2.66+0.88         2.57+0.45+7.435.27－1.6－3.45.7+0.6-5.7

8.48－（8.48+0.9）4.32-2.5+0.6821.32-（6.32+8.3）3.55-1.86+2.45

小数简便计算练习五

5.6+2.7+4.49.14-1.43-6.574.8+2.7+5.2+6.38.9＋0.46＋1.1＋3.54

29.36－0.25－8.750.38＋0.36＋2.6251.27－8.66－1.3418.5-（8.5+7.9）

18.75+76.3+1.25+23.7100-25.64-34.368.5+7.6-8.5+2.46.37-2.5-1.5 

（2.524+1.389）-（0.524+1.389）45.75-（15.75-3.87）4.08-3.5+3.925.26+31+1.74-19

47.67-（1.67+5.26）6.73＋4.6＋0.4    4.37＋0.9＋2.63    6.43–2.8–2.2 

18.51－9.03－0.97      32＋6.4十68十3.6     15.5十26.5一20.410.64-5.88+2.36

10.27十0.4－8.27      24.6一3.98十5.4－6.02         64.3一18.75十15.7一11.25

6.73＋4.6＋0.4     4.37＋0.9＋2.636.43–2.8–2.2        18.5-（8.5+7.9）

18.75+76.3+1.25+23.7   8.5+7.6-8.5+2.43.9+0.1-3.9+0.13.8+1.37+6.2+12.63 

小数简便计算练习六

5.04-2.5+0.9622.8-5.23-9.7723.66+4.34-3.665.6-0.81-1.19

15.9+3.26+4.167.2+41.5-71.3910.75+0.4-9.7516.23+8.92-7.23

50-28.5-13.513.79-9.6+10.211.5+0.68-1.572.8-8.6+5.2

20.8-（15.8-3.9）32.5+（5.5+6.13）3.52-（4.66-3.52）0.9+1.08+0.92+0.1

5.26+3.43+0.745.6+2.7+4.420.15+7.62+7.8551.27-8.66-1.34

48.14-2.43-7.5718.76-3.47-0.535.17-1.8-3.270.8-1.25-1.75

4.02-3.5+0.984.25-0.83+0.7523.04-0.8-13.4-6.215.13+4.92-5.13

3.98-1.5+6.024.8+1.2-4.8-1.230.99-（8.5+15.99）72.6-（22.6+3.45）

36.06-（5+6.06）5.85+1.89+2.15       24.8+14.6+15.4       5.85－1.75－0.25

小数简便计算练习七

0.66+7.85+0.15 8.025+3.1+12.175+0.9 4.13-0.6-1.4 4.13-（4.13+1.4）

8.07-3.27-0.73-1.076.45-（1.68+2.45） 9.15+4.8-9.15-4.8 5.23+10.9-5.23+10.1 

2.23-（1.23+0.86） 6.72-3.28-1.72  0.45+6.37+4.55 27.3+73.2+72.7

3.9－4.1＋6.1－5.914－7.32－2.6825.48－（9.4－0.52）9.43-（6.28-1.57）

23.65-（3.07+3.65）15.6+2.7-14.614.7+1.98+0.02+5.374+2.7+2.3+26

146.5－（23＋46.5）36.54－1.76－4.543.07－0.38－1.6232＋4.9－0.9

5.38+7.85-5.3824.8+14.6+15.4 5.85－1.75－0.25   5.85+1.89+2.15 

67.34+21.56+2.66+8.440.74+19.18+9.26+0.826.02+3.6+1.9815.75+3.59－0.59+14.25

5.6-4.34+7.34     85.7-（15.3-4.3）    9.5+8.13-6.1325.4-（15.4+7.7）  3.6－1.28＋3.4

小数简便计算练习八

5.8+12.37+4.2+2.63 3.75－8.64－3.36     17.83－9.5－7.83－0.532＋4.9－0.9

3.45＋8.7＋16.55＋1.327.38－5.34＋2.62－4.666.2＋5.18＋2.8 15-6.49+8.49

15.35－（5.35＋7.2）    3.63－1.25＋17.37－8.75 40.02-13.5+0.988.5+7.6-8.5+2.4

（2.6+1.3）-（0.6+1.3）23.75-8.54-3.4666.86－8.66－1.341.25+16.2-0.25

5.54+3.7+4.46+10.317.83-9.5-7.83-0.573.8－1.64－13.8－5.363.72+3.5＋6.28

13.75－（3.75＋6.48）7.85＋2.34－0.85＋4.663.82＋2.9＋0.18＋9.10.39+0.36+3.64

5.17－1.8－3.27.14－0.53－2.476.9＋4.8＋3.10.45＋6.22＋3.78

15.89＋（6.75－5.89）4.02＋5.4＋0.983.68＋7.56－2.683.82＋2.9＋0.18＋9.1

5.17－1.8－3.25.27＋2.86－0.86＋1.7313.85＋2.34－0.85＋4.663.9－0.53－2.47

小数简便计算练习九

4.02-3.5+0.985.17-1.8-3.213.7+0.98+0.02+4.30.38+0.36+2.64

5.26+3.43+0.741.29+3.7+0.71+6.33.9+4.08+3.92+1.15.6+2.7+4.4

9.13+4.85-6.1310.75+0.4-9.759.14-1.43-4.5775+2.7+2.3+25

51.27-8.66-1.343.6+8.59+6.425.8+7.5+2.57.3+2.5+5.7+17.5

9.6+6.7-9.6+3.32.11+0.25+0.89+0.758.15+1.99+3.01+0.853.17-2.9+1.83

11.08+9.05+0.95＋0.025.4+1.8-3.4-0.86.18＋0.87＋0.13＋3.8226.2-4.46-3.54

35.6＋4.8－3.673.8－3.9－6.115.02-6.8-1.0236.8－1.64－13.8－5.36

66.86－8.66－1.3432－4.1＋6.1－5.937.6－1.8－15.6－7.25＋4.9－0.9

25.4－（9.4－0.52）7.14－4.68＋2.8613.75－（3.75＋6.48）9.42－（1.2＋6.42）

小数简便计算练习十

37.8－（7.8－2.9）6.27－5.08＋1.7310.33－（3.75＋5.33）9.42－（1.2＋6.472）

3.7-1.56+4.3-2.449.66-4.25+0.344.36+14.8+5.64+5.238.2-7.09-20.6-2.31

1.2+2.5+1.80.5+1.5+1.5+0.55.26+3.77+1.740.25+0.15+0.75+0.85

27.85-（7.85+3.4）6.9＋4.8＋3.10.456＋6.22＋3.7815.89＋（6.75－5.89）

4.02＋5.4＋0.985.17－1.8－3.213.75－（3.75＋6.48）3.68＋7.56－2.68

7.85＋2.34－0.85＋4.6635.6－1.8－15.6－7.23.82＋2.9＋0.18＋9.19.6＋4.8－3.6

7.14－0.53－2.475.27＋2.86－0.66＋1.6313.35－4.68＋2.6573.8－1.64－13.8－5.36

66.86－8.66－1.3436.8－3.9－6.132＋4.9－0.925.48－（9.4－0.52）

6.9－4.1＋6.1－5.915.02-6.8-1.029.79-（4.94+3.79）21.88+3.28+0.12+0.72

小数简便计算练习十一

32＋4.9－0.9146.5－（23＋46.5）9.43-（6.28-1.57）4.8+8.63+5.2+0.37

5.93+0.19+2.811.76+0.195+3.242.35+1.713+0.287+7.651.57+0.245+7.43

6.02+3.6+1.980.134+2.66+0.8661.27+3.9+0.73+16.17.5＋4.9－6.5

3.07－0.38－1.621.29＋3.7＋2.71＋6.38－2.45－1.553.25＋1.79－0.59＋1.75

23.4－0.8－13.4－7.23.2＋0.36＋4.8＋1.645.78+0.84+0.161.27+3.9+16.1

0.19+4.93+2.813.82＋2.9＋0.18＋9.19.6＋4.8－3.65.27＋2.86－0.66＋1.63

13.35－4.68＋2.655.52-0.55-0.453.1+（25.78+6.9）34.79－（15.1+4.79）

12.7-4.8-5.27.14－0.53－2.472.4＋4.85－1.410―2.57―6.43

9.4＋0.3－6.419.2－5.45－2.5515.75＋3.59－0.5934.82－（4.82＋15.2）

小数简便计算练习十二

5.85＋1.89＋2.1514.15＋2.9＋1.859.02＋5.4＋0.980.456＋6.22＋3.78

10.9－3.74－0.914.3－8.66－1.3415.86－1.64－4.86－5.3642.5＋14.6＋15.4

9.3＋2.05＋6.7＋0.956.9＋（6.75－5.9）4.3＋1.4＋25.7＋8.666.86－0.72＋4.14

73.8－22.17－7.8324.8＋14.5＋5.511.9＋4.8＋3.16.28-（4.41-3.72）

27.3+73.2+72.7       　42.5－22.17－7.83   3.8+1.37+6.2+12.63 11.28-（3.28+6.54）

5.85－1.75－0.257.68－2.74－1.26   9.05+2.77+2.85   　24.8+14.6+15.4

4.78-1.28+1.22-0.72　46.4-14.5＋4.6+34.5　　5.37-（5.43-6.63）　94.7+（37.2-44.7）

45.55-（6.82+15.55）34.52-17.87-12.234.57+3.35+3.43+2.6523.75-8.64-3.36

3.45+8.7+16.55+1.33.6-2.19+3.1921.63-（8.5+9.63）4.34-（1.26+2.34）