A-A+

计算:(1)(13-57-25)×105;(2)(-112)×(-113)×(-114)×(

2022-08-15 12:06:48 问答库 阅读 205 次

问题详情

计算:
(1)(1

3

-5

7

-2

5

)×105;
(2)(-11

2

)×(-11

3

)×(-11

4

)×(-11

5

);
(3)12.25×(-13.5)×(-40)×20;
(4)17.48×37+174.8×1.9+8.74×88.

参考答案

(1)原式=35-75-42
=-82;

(2)原式=32×43×54×65
=3;

(3)原式=(12.25×40)×(13.5×20)
=490×270
=132300;

(4)原式=17.48×37+17.48×1.9+17.48×44
=17.48×(37+19+44)
=17.48×100
=1748.

考点: