四年级数学简便运算600题教学教材

79×42+79+79×57

21500÷125

7300÷25÷4

8100÷4÷75

16800÷120

2.73+0.89+1.27

4.37+0.28+1.63+5.72

10-0.432-2.568

9.3-5.26-2.74

14.9-(5.2+4.9)

18.32-5.47-4.32

25×6.8×0.04

0.25×32×0.125

6.4×1.25×12.5

c×(a+b)=c×a+c×b 0.45×201

0.58×10.1

50.2×99

4.7×9.9

3.28×5.7+6.72×5.7

2.1×99+2.1

23×0.1+2.3×9.9

0.18+4.26-0.18+4.26

0.58×1.3÷0.58×1.3

7.3÷4+2.7×0.25

3.75×0.5-2.75÷2

5.26×0.125+2.74÷8

a÷b÷c=a÷(b×c) 6.3÷1.8

9.5÷(1.9×8)

12.8÷(0.4×1.6)

930÷0.6÷5

63.4÷2.5÷0.4

(7.7+1.54)÷0.7

6.9+4.8+3.1

15.89+(6.75-5.89)

7.85+2.34-0.85+4.66

35.6-1.8-15.6-7.2

13.75-(3.75+6.48)

47.8-7.45+2.55

66.86-8.66-1.34

0.25×16.2×4

0.25×32×0.125

2.5×(4+0.4)

(1.25-0.125)×8

4.8×100.1 4.2×99

56.5×9.9+56.5

7.09×10.8-0.8×7.09

3.83×4.56+3.83×5.44

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