题目内容
计算:
(1)9+5×(-3)-(-2)2÷4;
(2)[(-3)2+(-2)3]+(3
-1
-2
).
(1)9+5×(-3)-(-2)2÷4;
(2)[(-3)2+(-2)3]+(3
| 1 |
| 5 |
| 23 |
| 25 |
| 2 |
| 15 |
(1)原式=9-15-1=-7;
(2)原式=[9-8]+(3
-1
-2
)=1-
=
.
(2)原式=[9-8]+(3
| 15 |
| 75 |
| 69 |
| 75 |
| 10 |
| 75 |
| 64 |
| 75 |
| 11 |
| 75 |
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