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