题目内容
计算题
(1)(-2)3+2×(-3)2
(2)4
÷[-32×(-
)2-0.8]÷(-5
).
(1)(-2)3+2×(-3)2
(2)4
| 1 |
| 2 |
| 1 |
| 3 |
| 1 |
| 4 |
(1)原式=-8+2×9=-8+18=10;
(2)原式=
÷(-9×
-0.8)÷(-5
)=
×(-
)×(-
)=
.
(2)原式=
| 9 |
| 2 |
| 1 |
| 9 |
| 1 |
| 4 |
| 9 |
| 2 |
| 5 |
| 9 |
| 4 |
| 21 |
| 10 |
| 21 |
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