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  • 数学五年级下册简便运算习题
  • 发布时间:2019-06-27 17:17 | 作者: | 来源: | 浏览:
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  •   简便运算是五年级下册数学学习的重点,下面就是小编为大家整理的五年级下册数学简便运算练习题,希望对大家有所帮助!

      习题一

      1、5.76+13.67+4.24+6.33

      =(5.76+4.24)+(13.67+6.33)

      =10+10

      =20

      2、37.24+23.79-17.24

      =37.24-17.24+23.79

      =20+23.79

      =43.79

      3、 4×3.78×0.25

      =4×0.25×3.78

      =1×3.78

      =3.78

      4、 125×246×0.8

      =125×0.8×246

      =100×246

      =24600

      5、(2.5+12.5)×40

      =2.5×40+12.5×40

      =100+500

      =600

      6、3.68×4.79+6.32×4.79

      =(3.68+6.32)×4.79

      =10×4.79

      =47.9

      7. 26.86×25.66-16.86×25.66

      =(26.86-16.86) ×25.66

      =10×25.66

      =256.6

      8、 5.7×99+5.7

      = 5.7×(99+1)

      =5.7×100

      =570

      习题二

      9、34×9.9

      =34×(10-0.1)

      =34×10-34×0.1

      =340-3.4

      =336.6

      10、 57×101

      =57×(100+1)

      =57×100+57×1

      =5757

      11、7.8×1.1

      =7.8×(1+0.1)

      =7.8×1+7.8×0.1

      =7.8+0.78

      =8.58

      12、25×32

      =25×4×8

      =100×8

      =800

      13、125×0.72

      =125×8×0.09

      =1000×0.09

      =90

      14、87×2/85

      =(85+2) ×2/85

      =85×2/85+2×2/85

      =2+4/85

      =2又4/85

      15、56.5-3.7-6.3

      =56.5-(3.7+6.3)

      =56.5-10

      =46.5

      16、32.6÷0.4÷2.5

      =32.6÷(0.4×2.5)

      =32.6÷1

      =32.6

      16、86.7×0.356+1.33×3.56

      =8.67×3.56+1.33×3.56

      =(8.67+1.33)×3.56

      =10×3.56

      =35.6

      17、15.6÷4-5.6×1/4

      =15.6×1/4-5.6×1/4

      =(15.6-5.6)×1/4

      =10×1/4

      =2又1/2

      18、16/23×27+16×19/23

      =27/23×16+16×19/23

      =16×(27/23+19/23)

      =16×2

      =32

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