题目内容
计算:
(1)(-3)2-(-1)3-(-2);
(2)-22×3×(-
)÷
-4×(-1
)2.
(1)(-3)2-(-1)3-(-2);
(2)-22×3×(-
| 3 |
| 2 |
| 2 |
| 3 |
| 1 |
| 2 |
(1)原式=9-(-1)+2
=11+1
=12;
(2)原式=-4×3×(-
)×
-4×
=27-9
=18.
=11+1
=12;
(2)原式=-4×3×(-
| 3 |
| 2 |
| 3 |
| 2 |
| 9 |
| 4 |
=27-9
=18.
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