题目内容
(1)| 1 |
| 2 |
| 24 |
| 4 |
| 3 |
| 18 |
| 8 |
| 1 |
| 3 |
| 54 |
(2)(-1)2000×(
| 1 |
| 2 |
| π |
| 2 |
| 3 |
分析:(1)按运算顺序计算即可;
(2)根据零指数幂、负整数指数幂、绝对值等知识点进行计算即可.
(2)根据零指数幂、负整数指数幂、绝对值等知识点进行计算即可.
解答:解:(1)原式=
-
÷(
)
=
-(
÷
)
=
-
=
;
(2)原式=1×8+1+|
-2|
=8+1+2-
=11-
| 6 |
| 4 |
| 3 |
| 18 |
| 2 |
| 3 |
| 8×54 |
=
| 6 |
| 4 |
| 3 |
| 2 |
| 3 |
|
=
| 6 |
| 1 |
| 6 |
| 6 |
=
| 5 |
| 6 |
| 6 |
(2)原式=1×8+1+|
| 3 |
=8+1+2-
| 3 |
=11-
| 3 |
点评:本题考查了二次根式的混合运算,解题的关键是先进行化简,再计算.
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