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计算下面各题 能简算的要简算:14+34×138×34×11557×14+34×57(38+

2022-08-14 02:43:04 问答库 阅读 200 次

问题详情

计算下面各题,能简算的要简算:
1

4

+3

4

×1

3

8×3

4

×1

15

5

7

×1

4

+3

4

×5

7

(3

8

+3

4

+1

3

)×24

3.6+3

7

+6.4+4

7

5

4

-(2

7

+1

4

)

47×3

46

63×57

58

3

8

×25-3

8

参考答案

(1)14+34×13,
=14+14,
=12;

(2)8×34×115=25;

(3)57×14+34×57,
=57×(14+34),
=57×1,
=57;

(4)(38+34+13)×24,
=38×24+34×24+13×24,
=9+18+8,
=35;

(5)3.6+37+6.4+47,
=(3.6+6.4)+(37+47),
=10+1,
=11;

(6)54-(27+14),
=54-14-27,
=1-27,
=57;

(7)47×346,
=(46+1)×346,
=46×346+346,
=3+346,
=3346;

(8)63×5758,
=63×(1-158)
=63-1558,
=615358;

(9)38×25-38,
=38×(25-1),
=38×24,
=9.

考点: