题目内容
计算:
(1)-
+(-
)+
+(-
)
(2)(-2)2-|-6|+2-3×(-
).
(1)-
| 3 |
| 4 |
| 1 |
| 2 |
| 5 |
| 6 |
| 4 |
| 3 |
(2)(-2)2-|-6|+2-3×(-
| 1 |
| 3 |
(1)原式=-
-
+
-
=-
-
=-
;
(2)原式=4-6+2+1
=-2+3
=1.
| 3 |
| 4 |
| 1 |
| 2 |
| 5 |
| 6 |
| 4 |
| 3 |
=-
| 5 |
| 4 |
| 1 |
| 2 |
=-
| 7 |
| 4 |
(2)原式=4-6+2+1
=-2+3
=1.
练习册系列答案
相关题目