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选择最合理的方法进行计算 992324×24435×79-335÷12712+1÷3.8×3

2022-08-14 02:43:06 问答库 阅读 200 次

问题详情

选择最合理的方法进行计算 9923

24

×2443

5

×7

9

-33

5

÷12

7

1

2

+1÷3.8×34

5

+3.5

(91

3

-3.25)÷21

2

+1.0521

3

÷[(51

15

-33

5

)×15][5-(91

10

-41

5

)×5

7

]÷11

2

参考答案


(1)992324×24,
=(99+2324)×24,
=99×24+2324×24,
=2376+23,
=2399;

(2)435×79-335÷127,
=435×79-335×79,
=(435-335)×79,
=1×79,
=79;

(3)12+1÷3.8×345+3.5,
=12+519×345+3.5,
=12+1+3.5,
=1.5+3.5,
=5;

(4)(913-3.25)÷212+1.05,
=6112÷212+1.05,
=7330+1.05,
=32930;

(5)213÷[(5115-335)×15],
=213÷[1715×15],
=213÷[1715×15],
=213÷22,
=766;

(6)[5-(9110-415)×57]÷112,
=[5-4910×57]÷112,
=[5-72]÷112,
=32÷112,
=1.

考点:方法