题目内容
30：______=
=(-)÷
=
=______成=______%
| () |
| 120 |
| 3 |
| 5 |
| 3 |
| 5 |
30：50=
=
÷
=
=六成=60%．
故答案为：50，72，
，六，60．
| 72 |
| 120 |
| 9 |
| 25 |
| 3 |
| 5 |
| 3 |
| 5 |
故答案为：50，72，
| 9 |
| 25 |
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题目内容
| () |
| 120 |
| 3 |
| 5 |
| 3 |
| 5 |
| 72 |
| 120 |
| 9 |
| 25 |
| 3 |
| 5 |
| 3 |
| 5 |
| 9 |
| 25 |