问题
解答题
计算: (1)(-2)+(-5)-(-9); (2)-22-|-2|+
(3)(-6)2×(
|
答案
(1)原式=-2-5+9
=2;
(2)原式=-4-2+
-11 3
=-6
.2 3
(3)原式=36×
-27÷1 6 27 8
=6-8
=-2.
计算: (1)(-2)+(-5)-(-9); (2)-22-|-2|+
(3)(-6)2×(
|
(1)原式=-2-5+9
=2;
(2)原式=-4-2+
-11 3
=-6
.2 3
(3)原式=36×
-27÷1 6 27 8
=6-8
=-2.