题目内容
计算:
(1)|-5-4|-(+5)×(-2)2-1×(-3)
(2)-1100-(1-0.5)×
×[3-(-3)2].
(1)|-5-4|-(+5)×(-2)2-1×(-3)
(2)-1100-(1-0.5)×
| 1 |
| 3 |
(1)|-5-4|-(+5)×(-2)2-1×(-3),
=9-20-(-3),
=-8;
(2)-1100-(1-0.5)×
×[3-(-3)2],
=-1-
×
×(-6),
=1-(-1),
=2.
=9-20-(-3),
=-8;
(2)-1100-(1-0.5)×
| 1 |
| 3 |
=-1-
| 1 |
| 2 |
| 1 |
| 3 |
=1-(-1),
=2.
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