题目内容
计算下列各题:
(1)(1-
+
)×(-48);
(2)-32-50÷(-5)2-1;
(3)-1-[2-(1-
×0.5)]×[32-(-2)2];
(4)(
+1
-2.75)×(-24)+(-1)200.
(1)(1-
| 1 |
| 6 |
| 3 |
| 4 |
(2)-32-50÷(-5)2-1;
(3)-1-[2-(1-
| 1 |
| 3 |
(4)(
| 1 |
| 8 |
| 1 |
| 3 |
(1)原式=-48+8-36=-76;
(2)原式=-9-2-1=-12;
(3)原式=-1-(2-1+
)×(9-4)=-1-
×5=-
;
(4)原式=-3-32+66+1=32.
(2)原式=-9-2-1=-12;
(3)原式=-1-(2-1+
| 1 |
| 6 |
| 7 |
| 6 |
| 41 |
| 6 |
(4)原式=-3-32+66+1=32.
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