五年级年级小数的简便运算练习题及答案

五年级年级小数的简便运算练习题及答案精品文档

五年级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

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×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

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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。

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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

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5.83×2，4.27

4.36×12.5×8

27.5×3.7,7.5×3.7

1.25×

2.5×32

3.6,0.6×2.6,3.6×0.

15.2?0.25?9.6?0.8?0.4.2×99，4.146.5,17.8? ?8?0.129.7×99，

9.15.6×13.1,15.6,15.6×2.10.65×101 .54?2.5?0.43.83×4.56，

3.83×5.44

6048，×39

6048，75-3005

6098，935-1045

1048，975-345

878×29

9948，275-304

68，975-345