题目内容
计算:
(1)(
+
-
+
)×(-48)
(2)(-2)2+(-2)÷(-
)+|-
|×(-24)
(1)(
| 1 |
| 6 |
| 1 |
| 36 |
| 1 |
| 4 |
| 1 |
| 12 |
(2)(-2)2+(-2)÷(-
| 2 |
| 3 |
| 1 |
| 16 |
(1)原式=
×(-48)+
×(-48)-
×(-48)+
×(-48)
=-8+(-
)-(-12)+(-4)
=-8-
+12-4
=-
;
(2)原式=4+(-2)×(-
)+
×(-16)
=4+3-1
=6.
| 1 |
| 6 |
| 1 |
| 36 |
| 1 |
| 4 |
| 1 |
| 12 |
=-8+(-
| 4 |
| 3 |
=-8-
| 4 |
| 3 |
=-
| 4 |
| 3 |
(2)原式=4+(-2)×(-
| 3 |
| 2 |
| 1 |
| 16 |
=4+3-1
=6.
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