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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