题目内容
化简或计算:
(
)
-[3×(
)0]-1•[81-0.25+(3
)-
]-
-10×0.027
.
(
| 10000 |
| 81 |
| 1 |
| 4 |
| 7 |
| 8 |
| 3 |
| 8 |
| 1 |
| 3 |
| 1 |
| 2 |
| 1 |
| 3 |
分析:利用指数幂的运算法则即可得出.
解答:解:原式=[(
)4]
-3-1×[34×(-
)+(
)3×(-
)]-
-10×0.3
=
-
×(
+
)-
-10×0.3
=
-
-3
=0.
| 10 |
| 3 |
| 1 |
| 4 |
| 1 |
| 4 |
| 3 |
| 2 |
| 1 |
| 3 |
| 1 |
| 2 |
| 1 |
| 3 |
=
| 10 |
| 3 |
| 1 |
| 3 |
| 1 |
| 3 |
| 2 |
| 3 |
| 1 |
| 2 |
=
| 10 |
| 3 |
| 1 |
| 3 |
=0.
点评:熟练掌握指数幂的运算法则是解题的关键.
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