题目内容
计算题:
(1)9+(-10)+(-2)-(-3);
(2)(
-
-
)×16÷(-
);
(3)(-10)2+[(-5)2-(3+22)×2].
(1)9+(-10)+(-2)-(-3);
(2)(
| 3 |
| 4 |
| 1 |
| 6 |
| 1 |
| 12 |
| 1 |
| 3 |
(3)(-10)2+[(-5)2-(3+22)×2].
(1)原式=9-10-2+3=0;
(2)原式=(
×16-
×16-
×16)×(-3)
=(12-
-
)×(-3)
=-36+8+4
=-24;
(3)原式=100+(25-7×2)=100+11=111.
(2)原式=(
| 3 |
| 4 |
| 1 |
| 6 |
| 1 |
| 12 |
=(12-
| 16 |
| 6 |
| 4 |
| 3 |
=-36+8+4
=-24;
(3)原式=100+(25-7×2)=100+11=111.
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