题目内容
9的倒数乘
,积是多少?
| 4 | 5 |
分析:9的倒数是
,再用
乘
即可解答.
| 1 |
| 9 |
| 1 |
| 9 |
| 4 |
| 5 |
解答:解:
×
=
答:积是
.
| 1 |
| 9 |
| 4 |
| 5 |
| 4 |
| 45 |
答:积是
| 4 |
| 45 |
点评:解答本题的关键是明确9的倒数是
.
| 1 |
| 9 |
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| 4 | 5 |
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| 1 |
| 9 |
| 4 |
| 5 |
| 1 |
| 9 |
| 4 |
| 5 |
| 4 |
| 45 |
| 4 |
| 45 |
| 1 |
| 9 |