题目内容
计算题
(1)(-2)3+(-3)×[(-4)2+2]-(-3)2÷(-2);
(2)(
+1
-2.75)×(-24)+(-1)200.
(1)(-2)3+(-3)×[(-4)2+2]-(-3)2÷(-2);
(2)(
| 1 |
| 8 |
| 1 |
| 3 |
(1)(-2)3+(-3)×[(-4)2+2]-(-3)2÷(-2)
=-8+(-3)×18+
=-62+
=-
;
(2)(
+1
-2.75)×(-24)+(-1)200
=(
+
-
)×(-24)+1
=
×(-24)+
×(-24)-
×(-24)+1
=-3-32+66+1
=32.
=-8+(-3)×18+
| 9 |
| 2 |
=-62+
| 9 |
| 2 |
=-
| 115 |
| 2 |
(2)(
| 1 |
| 8 |
| 1 |
| 3 |
=(
| 1 |
| 8 |
| 4 |
| 3 |
| 11 |
| 4 |
=
| 1 |
| 8 |
| 4 |
| 3 |
| 11 |
| 4 |
=-3-32+66+1
=32.
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