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