题目内容
利用幂的性质进行计算：
×
÷
．
| 6 | 42 |
| 8 |
| 6 | 2 |
原式=
×2
÷2
=2×2
•2
÷2
=21+
+
-
=2
=
．
| 6 | 24 |
| 2 |
| 1 |
| 6 |
=2×2
| 1 |
| 3 |
| 1 |
| 2 |
| 1 |
| 6 |
=21+
| 1 |
| 3 |
| 1 |
| 2 |
| 1 |
| 6 |
=2
| 5 |
| 3 |
=
| 3 | 32 |
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题目内容
| 6 | 42 |
| 8 |
| 6 | 2 |
| 6 | 24 |
| 2 |
| 1 |
| 6 |
| 1 |
| 3 |
| 1 |
| 2 |
| 1 |
| 6 |
| 1 |
| 3 |
| 1 |
| 2 |
| 1 |
| 6 |
| 5 |
| 3 |
| 3 | 32 |