题目内容
计算:
(1)(-
)×(-1
)÷(-2
);
(2)-6÷(-0.25)×
.
(1)(-
| 3 |
| 4 |
| 1 |
| 2 |
| 1 |
| 4 |
(2)-6÷(-0.25)×
| 11 |
| 14 |
(1)原式=(-
)×(-
)÷(-
)
=-
×
×
=-
.
(2)-6÷(-0.25)×
=6×4×
=66.
| 3 |
| 4 |
| 3 |
| 2 |
| 9 |
| 4 |
=-
| 3 |
| 4 |
| 3 |
| 2 |
| 4 |
| 9 |
=-
| 1 |
| 2 |
(2)-6÷(-0.25)×
| 11 |
| 14 |
=6×4×
| 11 |
| 4 |
=66.
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