题目内容
计算
(1)(+7)+(-4)-(-3)-14
(2)-33-|-1|-(-1)2009+
(3)24
×(-4)
(4)(-
)÷(
-
+
)
(1)(+7)+(-4)-(-3)-14
(2)-33-|-1|-(-1)2009+
| 1 |
| 2 |
(3)24
| 15 |
| 16 |
(4)(-
| 1 |
| 30 |
| 1 |
| 2 |
| 1 |
| 3 |
| 1 |
| 15 |
(1)原式=7-4+3-14=-8;
(2)原式=-9-1+1+
=-8
;
(3)原式=(25-
)×(-4)=-100+
=-99
;
(4)原式=(-
)÷
=-
×
=-
.
(2)原式=-9-1+1+
| 1 |
| 2 |
| 1 |
| 2 |
(3)原式=(25-
| 1 |
| 16 |
| 1 |
| 4 |
| 3 |
| 4 |
(4)原式=(-
| 1 |
| 30 |
| 15-10+2 |
| 30 |
| 1 |
| 30 |
| 30 |
| 7 |
| 1 |
| 7 |
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