人教版四年级数学下册小数加减法简便计算专项练习题145Word文档格式.docx

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人教版四年级数学下册小数加减法简便计算专项练习题145Word文档格式.docx

3.86+4.4+3.67.86-1.4-4.6

4.33-1.9+5.6718.3+0.13+0.87+11.7

1.4+3.8+8.87.28-2.37-3.63

75+7.9+4.9+581.83+2.62+3.38

3.88+3.45+5.124.37+8.2+4.63+1.8

3.4+3.27+2.73+5.69.77+5.74-6.77

1.2+9.89+8.8=1.2+____+9.89

(3.47+3.37)+3.63=____+(____+____)

11.49-1.8-8.2=____〇(____〇____)

2.27+1.4+4.68.42-3.6-2.4

4.03-1.3+4.9715.1+0.97+0.03+6.9

4.1+7.4+1.39.29-2.07-3.93

25+8.7+9.2+143.75+1.21+7.79

5.04+6.42+1.964.93+0.3+2.07+9.7

1.9+2.15+5.85+4.19.22+3.32-4.22

1.1+4.81+8.9=1.1+____+4.81

(1.63+1.21)+5.79=____+(____+____)

34.16-4.3-5.7=____〇(____〇____)

1.89+3.2+2.87.32-1.7-3.3

5.84-3.2+3.162.3+0.54+0.46+19.7

5.3+8.1+4.57.58-1.77-2.23

41+3.7+8.9+143.08+5.09+2.91

3.64+6.16+2.365.62+1.8+1.38+8.2

3.5+2.74+2.26+4.59.16+5.82-7.16

5.1+3.54+4.9=5.1+____+3.54

(7.24+4.95)+2.05=____+(____+____)

42.69-4.4-5.6=____〇(____〇____)

8.89+2.3+3.77.01-2.4-1.6

4.08-3.8+3.927.6+0.65+0.35+20.4

1.3+3.3+3.87.36-0.85-5.15

74+3.7+6.1+945.06+2.77+3.23

0.21+3.13+9.794.15+2.5+4.85+7.5

3.7+3.72+6.28+4.36.49+7.31-4.49

9.8+8.04+0.2=9.8+____+8.04

(2.89+2.61)+4.39=____+(____+____)

49.58-1.6-8.4=____〇(____〇____)

9.07+5.1+0.98.66-3.7-0.3

6.66-1.3+0.347.8+0.47+0.53+20.2

3.3+2.1+4.49.07-0.41-5.59

46+2.1+2.3+223.96+3.05+4.95

5.29+2.24+0.710.06+6.2+6.94+3.8

1.5+4.43+1.57+4.58.59+4.54-4.59

5.5+8.13+4.5=5.5+____+8.13

(6.94+2.32)+3.68=____+(____+____)

17.66-8.8-1.2=____〇(____〇____)

6.05+1.4+7.68.03-2.8-1.2

5.04-2.7+1.9610.8+0.16+0.84+9.2

2.2+5.5+2.77.11-0.33-6.67

66+5.4+1.3+857.48+3.35+2.65

3.23+4.26+3.772.32+0.1+6.68+9.9

4.9+1.74+7.26+5.19.93+5.51-4.93

1.2+6.58+8.8=1.2+____+6.58

(4.99+1.44)+6.56=____+(____+____)

25.19-4.1-5.9=____〇(____〇____)

7.86+1.7+7.36.41-2.6-1.4

4.97-1.4+5.034.1+0.75+0.25+21.9

3.2+3.6+6.97.94-1.89-2.11

28+5.4+8.4+523.85+5.63+4.37

4.52+7.34+4.481.03+3.9+8.97+6.1

0.5+4.81+5.19+6.58.19+7.34-4.19

9.5+8.85+0.5=9.5+____+8.85

(2.03+1.06)+7.94=____+(____+____)

30.94-8.3-1.7=____〇(____〇____)

3.24+3.9+2.16.35-2.6-1.4

4.76-2.2+4.2411.1+0.78+0.22+14.9

1.2+3.1+5.27.83-2.43-3.57

19+7.8+6.5+189.64+2.42+4.58

0.27+4.62+8.731.91+0.5+6.09+9.5

0.5+0.08+7.92+7.59.13+0.46-5.13

6.7+5.03+3.3=6.7+____+5.03

(9.82+2.04)+4.96=____+(____+____)

10.85-4.5-5.5=____〇(____〇____)

6.14+2.8+7.26.69-2.7-3.3

6.67-1.3+1.337.9+0.21+0.79+21.1

8.7+7.3+7.67.95-2.89-1.11

43+5.1+3.3+295.44+4.24+1.76

3.14+0.07+3.865.58+7.1+2.42+2.9

1.7+1.26+5.74+4.39.22+7.03-7.22

1.2+1.38+8.8=1.2+____+1.38

(5.11+3.65)+2.35=____+(____+____)

16.52-2.9-7.1=____〇(____〇____)

5.58+2.3+3.77.57-3.7-1.3

5.08-1.5+1.926.4+0.36+0.64+22.6

1.6+7.8+6.58.79-0.82-4.18

73+1.1+6.1+678.73+0.82+7.18

5.75+4.08+0.253.22+6.4+3.78+3.6

5.3+4.14+0.86+0.78.71+4.18-7.71

5.9+1.74+4.1=5.9+____+1.74

(8.11+3.96)+6.04=____+(____+____)

43.57-7.1-2.9=____〇(____〇____)

3.16+2.1+5.99.81-1.4-2.6

6.94-1.3+2.0614.7+0.69+0.31+8.3

8.7+7.5+9.29.89-2.53-3.47

37+5.4+6.3+222.84+4.41+1.59

0.94+9.02+7.065.04+5.7+4.96+4.3

3.1+3.23+5.77+3.98.61+1.21-6.61

9.4+9.21+0.6=9.4+____+9.21

(4.52+4.87)+2.13=____+(____+____)

38.87-4.9-5.1=____〇(____〇____)

7.91+4.4+5.69.88-1.3-4.7

6.96-3.1+3.0416.6+0.11+0.89+5.4

3.3+7.1+2.58.11-2.05-3.95

57+6.4+1.4+137.71+0.04+8.96

5.33+9.36+3.670.82+8.3+8.18+1.7

4.3+1.36+5.64+1.78.41+5.02-3.41

3.4+8.69+6.6=3.4+____+8.69

(4.91+3.29)+5.71=____+(____+____)

21.97-8.8-1.2=____〇(____〇____)

1.42+1.1+5.99.97-3.2-2.8

4.98-2.5+2.0213.7+0.02+0.98+14.3

2.4+7.2+3.99.65-0.89-4.11

18+9.1+8.2+169.48+3.07+5.93

0.78+1.14+5.220.96+4.9+8.04+5.1

3.7+0.16+4.84+6.37.63+4.29-6.63

4.6+1.95+5.4=4.6+____+1.95

(5.21+4.83)+2.17=____+(____+____)

31.77-5.4-4.6=____〇(____〇____)

9.23+4.9+3.18.69-1.5-2.5

6.67-2.1+2.3314.8+0.84+0.16+7.2

1.2+1.2+8.78.43-0.26-4.74

66+2.3+9.7+813.77+5.34+0.66

0.06+9.93+6.940.71+0.6+8.29+9.4

2.2+2.46+5.54+5.87.72+3.19-4.72

2.3+4.44+7.7=2.3+____+4.44

(4.96+3.41)+2.59=____+(____+____)

49.93-8.3-1.7=____〇(____〇____)

8.92+1.4+5.69.41-3.9-0.1

4.46-2.5+3.5412.1+0.49+0.51+11.9

7.1+4.4+7.99.54-2.79-4.21

16+7.9+6.7+455.67+3.77+5.23

3.74+5.41+6.265.01+8.6+3.99+1.4

4.7+4.78+4.22+1.38.75+2.06-6.75

4.7+8.79+5.3=4.7+____+8.79

(2.21+4.64)+3.36=____+(____+____)

27.82-5.9-4.1=____〇(____〇____)

7.07+4.6+1.49.86-1.1-3.9

6.13-1.9+2.8712.5+0.77+0.23+9.5

5.5+4.5+2.59.62-1.99-2.01

66+8.5+6.4+626.33+4.92+2.08

2.39+3.27+6.613.34+8.6+6.66+1.4

5.4+4.51+1.49+1.66.38+7.01-1.38

3.9+6.36+6.1=3.9+____+6.36

(2.45+2.59)+3.41=____+(____+____)

15.05-2.1-7.9=____〇(____〇____)

9.78+5.5+0.57.32-1.7-2.3

4.26-3.2+2.748.2+0.56+0.44+16.8

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