题目内容
计算:
(1)-3-(-5)3÷5
(2)-14-(1-0.5)÷3×[3-(-3)2].
(1)-3-(-5)3÷5
(2)-14-(1-0.5)÷3×[3-(-3)2].
(1)原式=-3-(-125)÷5
=-3+25
=22;
(2)原式=-1-
×
×(3-9)
=-1-
×
×(-6)
=-1+1
=0.
=-3+25
=22;
(2)原式=-1-
| 1 |
| 2 |
| 1 |
| 3 |
=-1-
| 1 |
| 2 |
| 1 |
| 3 |
=-1+1
=0.
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