题目内容
计算:
(1)(-48)×(-
+
-
);
(2)-14÷(-5)2×(-
)+|0.8-1|.
(1)(-48)×(-
| 1 |
| 6 |
| 3 |
| 4 |
| 1 |
| 12 |
(2)-14÷(-5)2×(-
| 5 |
| 2 |
(1)原式=(-48)×(-
)+(-48)×
+(-48)×(-
)------(2分)
=8+(-36)+4------------------(4分)
=-24---------------------------(6分)
(2)原式=-1×
×(-
)+|-0.2|----------------------(2分)
=
+
-------------------------(4分)
=
----------------------------------(6分)
| 1 |
| 6 |
| 3 |
| 4 |
| 1 |
| 12 |
=8+(-36)+4------------------(4分)
=-24---------------------------(6分)
(2)原式=-1×
| 1 |
| 25 |
| 5 |
| 2 |
=
| 1 |
| 10 |
| 1 |
| 5 |
=
| 3 |
| 10 |
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