题目内容
计算
(1)(-4)2×(-
)+30÷(-6)
(2)-14+(-2)2+|2-5|-6×(
-
).
(1)(-4)2×(-
| 3 |
| 4 |
(2)-14+(-2)2+|2-5|-6×(
| 1 |
| 2 |
| 1 |
| 3 |
(1)(-4)2×(-
)+30÷(-6)
=16×(-
)-5
=-12-5
=-17;
(2)-14+(-2)2+|2-5|-6×(
-
)
=-1+4+3-6×
=-1+4+3-1
=5.
| 3 |
| 4 |
=16×(-
| 3 |
| 4 |
=-12-5
=-17;
(2)-14+(-2)2+|2-5|-6×(
| 1 |
| 2 |
| 1 |
| 3 |
=-1+4+3-6×
| 1 |
| 6 |
=-1+4+3-1
=5.
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