题目内容
计算:
(1)(-1)2013-(
-π)0+(
)-1+|2-
|;
(2)2
×
÷(5
).
(1)(-1)2013-(
5 |
1 |
4 |
5 |
(2)2
12 |
| ||
4 |
2 |
(1)原式=-1-1+4+
-2
=
;
(2)原式=2×
×
×
÷
=
.
5 |
=
5 |
(2)原式=2×
1 |
4 |
1 |
5 |
12×3 |
2 |
=
3
| ||
10 |
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