问题
解答题
计算: (1)-20+(-14)-(-18)+|-13|; (2)(
(3)-32×[(1-7)÷6]3+75÷(-5)2; (4)(-2)3-1
|
答案
(1)原式=-20-14+18+13
=-3.
(2)原式=
×(-24)-5 8
×(-24)+1 6
×(-24)7 12
=-15+4-14
=-25.
(3)原式=-9×(-1)+75÷25
=12.
(4)原式=-8+
+82 3
=
.2 3