题目内容
3.2÷
×(-
)÷(-16).
| 4 |
| 5 |
| 8 |
| 15 |
原式=
×
×(-
)×(-
)
=
×
×
×
=
.
| 16 |
| 5 |
| 5 |
| 4 |
| 8 |
| 15 |
| 1 |
| 16 |
=
| 16 |
| 5 |
| 5 |
| 4 |
| 8 |
| 15 |
| 1 |
| 16 |
=
| 2 |
| 15 |
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