题目内容
计算:
(1)(1-
)÷(-
)+(-2)2×(-3)
(2)-22-|1-
×0.2|÷(-
)2.
(1)(1-
| 2 |
| 3 |
| 1 |
| 6 |
(2)-22-|1-
| 1 |
| 5 |
| 4 |
| 5 |
(1)原式=
×(-6)+4×(-3)
=-2+(-12)
=-14;
(2)原式=-4-
÷
=-4-1
=-5
| 1 |
| 3 |
=-2+(-12)
=-14;
(2)原式=-4-
| 24 |
| 25 |
| 24 |
| 25 |
=-4-1
=-5
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