题目内容
计算:
(1)-12+(-2)3×
-
×(-
);
(2)(
-2)2+(
+3)(
-3).
(1)-12+(-2)3×
| 1 |
| 8 |
| 3 | -27 |
|
(2)(
| 3 |
| 2 |
| 2 |
(1)原式=-1+(-8)×
-(-3)×(-
)
=-1-1-1
=-3;
(2)原式=3-4
+4+2-9
=-4
.
| 1 |
| 8 |
| 1 |
| 3 |
=-1-1-1
=-3;
(2)原式=3-4
| 3 |
=-4
| 3 |
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