五年级小数的简便运算练习题及答案

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五年级小数的简便运算练习题及答案

一、口算。24×5=100-23.56= 1.5×0.4=0.8×50=2×25=

8×125= 1-0.48=.65×1=0.2×500=.5×4=12×16+8×16=

二、运用运算定律填空。

4.8+8.63+

5.2+0.5.93+0.19+2.81 1.76+0.195+3.24 2.35+1.713+0.287+7.61.57+0.245+7.

6.02+3.6+1.98

0.134+2.66+0.8661.27+3.9+0.73+16.1 .5+4.9-6.5

3.07-0.38-1.1.29+3.7+2.71+6.8-2.45-1.55

3.25+1.79-0.59+1.7523.4-0.8-13.4-7.0.32×403

3.2+0.36+

4.8+1.61.23+3.4-0.23+6.60.25×36

12.7-6.54-1.76-4.540.25×0.73×4

7.6×0.8+0.2×7.60.85×190.25×8.5×4

1.28×8.6+0.72×8.1

2.5×0.96×0.10.4-9.6×0.35

0.8×3.12+3.12×9928.6×101-28.6

×0. 0.86×15.7-0.86×14..4×102

14-7.32- 2.62.64+8.67+7.36+

11.332.31×1.2×0.5

4.02+

5.4+0.985.17-1.8-3.213.75-

3.68+7.56-2.687.85+2.34-0.85+

4.66.6-1.8-1

5.6-7.2

3.82+2.9+0.18+9.1 .6+

4.8-3.67.14-0.53-2.47

5.27+2.86-0.66+1.6313.35-4.68+2.6547.8-7.45+8.8

0.398+0.36+3.6415.75+3.59-0.59+14.22.5-

73.8-1.64-13.8-5.366.86-8.66-1.340.25×16.2×4

3.72×3.5+6.28×3.6.8-3.9-6.15.48-

4.8×7.8+78×0.523.6×1026.4×0.25+3.6÷4

32+4.9-0.94.8-4.8×0.5×8

4.8×100.1.5×9.9+56..09×10.8-0.8×7.09

4.2÷3.5320÷1.25÷818.76×9.9+18.76

3.52÷2.5÷0.

4.78÷0.2+3.443.9-4.1+6.1-

5.9 0.49÷1. 1.25×2.5×3.6-0.6×2

3.65×10.13.6-3.6×0.15.2÷0.25÷4

5.6÷3.59.6÷0.8÷0.4.2×99+4.2

0.89×100.1 146.5-17.8÷

5.83×2+4.27÷8÷0.1259.7×99+9.7

4.36×12.5×1

5.6×13.1-15.6-15.6×2.10.65×101

27.5×3.7-7.5×3.78.54÷2.5÷0..83×4.56+3.83×5.44

×0.9.16×1.5-0.5×9.16.6-3.6×0.5

4.5÷1..2÷3.30÷0.6÷5

63.4÷2.5÷0.4.9÷1.4.9÷

÷0..5×2.42.7÷45

0.35×1.25×2×0.82.4×0.9+0.1×32. 15÷0.25 70÷15÷4.25÷2.5×9.9+0.17

0.125×640.68×101.26×5.7-3.26×0.7

55.6×99+55.61.25×213×0. 19.625-

3.42×5.7+

4.3×3.4.75×11-8.7

.9×212

0.4×2.1=○0.4×2.5=○

×25=×25+×25

9.8×124=×124=× -×

三、两个筑路队,甲队8天修路6.48千米,乙队9天修路10.35千米,先说说哪个队的工作效率高些,再计算一下你说的对不对。

四、一个六层塔,每一层点灯的盏数都是它的上一层的3倍,已知最顶层点了2盏灯,求这座塔共点了多少盏灯?

73.8-1.64-13.8-5.366.86-8.66-1.340.25×16.2×4

3.72×3.5+6.28×3.536.8-3.9-6.1.48-

4.8×7.8+78×0.

5.6×102

32+4.9-0.94.8-4.8×0.5

4.8×100.156.5×9.9+56.5

4.02+

5.4+0.9.17-1.8-3.2

3.68+7.56-2.68.85+2.34-0.85+

4.66

3.82+2.9+0.18+9.1.6+

4.8-3.6

5.27+2.86-0.66+1.13.35-4.68+2.65

0.398+0.36+3.6415.75+3.59-0.59+14.25

6.4×0.25+3.6÷ ×.09×10.8-0.8×

7.0-5.6-1.8-15.6-7.2.14-0.53-2.447.8-7.45+

8.2.5-13.75 4.2÷3.5320÷1.25÷ 18.76×

9.9+18.76

3.52÷2.5÷0.4

4.78÷0.2+3.443.9-4.1+6.1-

5.9

0.49÷1.4

3.65×10.1

5.6÷3.5

0.89×100.1

5.83×2+4.27

4.36×12.5×8

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