问题
解答题
计算: (1)-
(2)(-2)2-|-6|+2-3×(-
|
答案
(1)原式=-
-3 4
+1 2
-5 6 4 3
=-
-5 4 1 2
=-
;7 4
(2)原式=4-6+2+1
=-2+3
=1.
计算: (1)-
(2)(-2)2-|-6|+2-3×(-
|
(1)原式=-
-3 4
+1 2
-5 6 4 3
=-
-5 4 1 2
=-
;7 4
(2)原式=4-6+2+1
=-2+3
=1.