题目内容
计算题:
(1)
+4
+
-|-3
|
(2)
÷3
×(-5
).
(1)
| 32 |
|
| 2 | ||
|
| 2 |
(2)
2
|
| 28 |
2
|
(1)原式=4
+2
-
-2-3
=2
-2;
(2)原式=
×
×(-
)
=-
.
| 2 |
| 2 |
| 2 |
| 2 |
=2
| 2 |
(2)原式=
| 3 |
| 2 |
| 1 | ||
6
|
20
| ||
| 7 |
=-
| 5 |
| 7 |
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