A-A+

下列各题怎样算简便就怎样算.16+34×23÷2[1-(12+38)]÷14(34+12-7

2022-08-14 02:40:53 问答库 阅读 200 次

问题详情

下列各题怎样算简便就怎样算.

1

6

+3

4

×2

3

÷2[1-(1

2

+3

8

)]÷1

4

(3

4

+1

2

-7

12

)×24

[4-(3

4

-3

8

)]×4

29

17

24

×3

4

+17

24

÷42-6

13

÷9

26

-2

3

参考答案

16+34×23÷2
=16+34×23×12
=16+14=512;
[4-(34-38)]×429
=[4-38]×429
=298×429
=12;
[1-(12+38)]÷14
=[1-78]×4
=18×4
=12;
1724×34+1724÷4
=1724×(34+14)
=1724×1
=1724;
(34+12-712)×24
=34×24+12×24-712×24
=18+12-14
=16;
2-613÷926-23
=2-613×269-23
=2-113-23
=0;

考点: