题目内容
(123×43)
×(
)
.
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| 6 |
| 1 |
| 3 |
| 1 |
| 2 |
(123×43)
×(
)
=(12×4)
×(
)
=(12×4×
)
=1;
| 1 |
| 6 |
| 1 |
| 3 |
| 1 |
| 2 |
=(12×4)
| 1 |
| 2 |
| 1 |
| 3 |
| 1 |
| 2 |
=(12×4×
| 1 |
| 3 |
| 1 |
| 2 |
=1;
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