题目内容
计算
(1)(1-
)÷3×(-6)-22
(2)-13-(1-0.5)×
×[4-(-3)2]
(3)(
+
-
)×32.
(1)(1-
| 1 |
| 2 |
(2)-13-(1-0.5)×
| 1 |
| 3 |
(3)(
| 1 |
| 4 |
| 1 |
| 8 |
| 1 |
| 16 |
(1)原式=
×
×(-6)-4=-1-4=-5;
(2)原式=-1-
×(-5)=-1+
=-
;
(3)原式=8+4-2=10.
| 1 |
| 2 |
| 1 |
| 3 |
(2)原式=-1-
| 1 |
| 6 |
| 5 |
| 6 |
| 1 |
| 6 |
(3)原式=8+4-2=10.
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