问题
解答题
计算:(1)(+
(2)(-5
(3)(
(4)-32×
|
答案
(1)原式=
-1 4
+7 3
-11 4 11 3
=3-6
=-3;
(2)原式=-
×11 2
-8×4 11 1 2
=-2-4
=-6;
(3)原式=
×(-36)8-9+2 36
=-1;
(4)原式=-9×
-[25×(-1 3
)+60×3 5
-2]1 4
=-3-(-15+15-2)
=-3+2
=-1.