A-A+

计算:(1)-0.5+(-15)-(-17)-|-12|;(2)[-22+(-2)3]-(-

2022-08-15 16:32:05 问答库 阅读 207 次

问题详情

计算:
(1)-0.5+(-15)-(-17)-|-12|;
(2)[-22+(-2)3]-(-2)×(-3);
(3)(1

2

-3+5

6

-7

12

)÷(-1

36

);
(4)-1.6÷[(-2

3

)2×(-3)3-22];
(5)-14+[1-(1-0.5×2)]÷|2-(-3)2|;
(6)[(-3)2-22-(-5)2]×(5

6

÷4

9

)×(-2)4

参考答案

(1)原式=-0.5-15+17-12
=-27.5+17
=-10.5;
(2)原式=(-4-8)-6
=-12-6
=-18;
(3)原式=-18+108-30+21
=81;
(4)原式=-1.6÷[49×(-27)-4]
=-1.6÷(-16)
=0.1;
(5)原式=-1+[1-(1-1)]÷7
=-1+17
=-67;
(6)原式=(9-4-25)×56×94×16
=(-20)×56×94×16
=-600.

考点: