题目内容
计算
(1)3-[(-3)-12]
(2)-
×[-33×(-
)2-6]
(1)3-[(-3)-12]
(2)-
| 3 |
| 4 |
| 2 |
| 3 |
(1)原式=3-[-3-12]
=3+15
=18;
(2)原式=-
×[-27×
-6]
=-
×[-12-6]
=-
×[-18]
=
.
=3+15
=18;
(2)原式=-
| 3 |
| 4 |
| 4 |
| 9 |
=-
| 3 |
| 4 |
=-
| 3 |
| 4 |
=
| 27 |
| 2 |
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