题目内容
计算题:
(1)(+18)+(-12)
(2)(-1.5)×
÷(-
)×
(3)(
-
-
)×48
(4)-22-(-3)3×(-1)4.
(1)(+18)+(-12)
(2)(-1.5)×
| 4 |
| 5 |
| 2 |
| 5 |
| 3 |
| 4 |
(3)(
| 2 |
| 3 |
| 1 |
| 4 |
| 3 |
| 8 |
(4)-22-(-3)3×(-1)4.
(1)(+18)+(-12)=18-12=6;
(2)原式=-
×
×(-
)×
=
;
(3)原式=48×
-48×
-48×
=32-12-18=2;
(4)原式=-4-(-27)×1=-4+27=23.
(2)原式=-
| 3 |
| 2 |
| 4 |
| 5 |
| 5 |
| 2 |
| 3 |
| 4 |
| 9 |
| 4 |
(3)原式=48×
| 2 |
| 3 |
| 1 |
| 4 |
| 3 |
| 8 |
(4)原式=-4-(-27)×1=-4+27=23.
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