题目内容
计算:
(1)-1100-(1-0.5)×
×[3-(-3)2]
(2)(
+
-
)×(-36)
(3)-14-
×[3-(-3)2].
(1)-1100-(1-0.5)×
| 1 |
| 3 |
(2)(
| 1 |
| 2 |
| 5 |
| 6 |
| 7 |
| 12 |
(3)-14-
| 1 |
| 6 |
(1)原式=-1-
×
×(3-9)
=-1-
×(-6)
=-1+1
=0;
(2)原式=-18-30+21
=-48+21
=-27;
(3)原式=-1-
×(3-9)
=-1+1
=0.
| 1 |
| 2 |
| 1 |
| 3 |
=-1-
| 1 |
| 6 |
=-1+1
=0;
(2)原式=-18-30+21
=-48+21
=-27;
(3)原式=-1-
| 1 |
| 6 |
=-1+1
=0.
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