A-A+

脱式计算 能简算的要简算.(14+18+116)÷12415×11-59×34-59×141

2022-08-14 02:52:31 问答库 阅读 200 次

问题详情

脱式计算,能简算的要简算.
(1

4

+1

8

+1

16

)÷1

24

1

5

×11-5

9

×3

4

-5

9

×1

4

12×(2

3

+1

4

-1

6

)(1

12

+3

47

)×12-36÷47

23-8

9

×3

4

÷1

27

[1-(1

4

+3

8

)]÷1

4

参考答案

(1)(14+18+116)÷124,
=(14+18+116)×24,
=24×14+18×24+116×24,
=6+3+32,
=9+32,
=1012;

(2)15×11-59×34-59×14,
=(15×11)-[59×(34+14)],
=(15×11)-(59×1),
=115-59,
=7445;

(3)12×(23+14-16),
=12×23+12×14-12×16,
=8+3-2,
=9;

(4)(112+347)×12-36÷47,
=112×12+347×12-36÷47,
=1+3647-3647,
=1+(3647-3647),
=1+0,
=1;

(5)23-89×34÷127,
=23-23÷127,
=23-18,
=5;

(6)[1-(14+38)]÷14,
=[1-58]÷14,
=38÷14,
=32.

考点: