问题
解答题
计算 (1)-9+12-3+8 (2)3-
(3)-24-(-5
(4)(-2)3-2×(-3)+|2-5|-(-1)2010. |
答案
(1)原式=3-3+8
=8;
(2)原式=3-
×8+3 4
×3 4
+4 3
×3 4 14 15
=3-6+1+7 10
=-2+7 10
=-1.3;
(3)原式=-16+
×11 2
-84 11
=-16+2-8
=-22;
(4)原式=-8+6+3-1
=0.