题目内容
计算
(1)8+(-
)-6-(-
);
(2)(
-
)×12;
(3)3×(-6)-6÷(-
);
(4)5+15÷(-3)2×(-
)-2.
(1)8+(-
| 1 |
| 4 |
| 1 |
| 4 |
(2)(
| 1 |
| 2 |
| 3 |
| 4 |
(3)3×(-6)-6÷(-
| 1 |
| 2 |
(4)5+15÷(-3)2×(-
| 2 |
| 5 |
(1)原式=8+(-
)-6+
=2;
(2)原式=
×12-
×12
=6-9
=-3;
(3)原式=-18-6×(-2)
=-18+12
=-6;
(4)原式=5+15÷9×(-
)-2
=5+(-
)-2
=2
.
| 1 |
| 4 |
| 1 |
| 4 |
=2;
(2)原式=
| 1 |
| 2 |
| 3 |
| 4 |
=6-9
=-3;
(3)原式=-18-6×(-2)
=-18+12
=-6;
(4)原式=5+15÷9×(-
| 2 |
| 5 |
=5+(-
| 2 |
| 3 |
=2
| 1 |
| 3 |
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