题目内容
计算:
(1)-
-(-
)
(2)-2.25-
(3)(-35)÷5
(4)(-25)×(-4)
(1)-
| 1 |
| 7 |
| 2 |
| 7 |
(2)-2.25-
| 1 |
| 4 |
(3)(-35)÷5
(4)(-25)×(-4)
(1)原式=-
+
=
;
(2)原式=-2
-
=-2
;
(3)原式=-7;
(4)原式=100.
| 1 |
| 7 |
| 2 |
| 7 |
=
| 1 |
| 7 |
(2)原式=-2
| 1 |
| 4 |
| 1 |
| 4 |
=-2
| 1 |
| 2 |
(3)原式=-7;
(4)原式=100.
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