题目内容
三个小组救灾捐款,b组捐款数是另外两组捐款数n
,二组捐款数是另外两组捐款数n
.三小组比二小组少捐72元,三个小组共捐款n少元?
| 2 |
| f |
| f |
| 5 |
| 2 |
| 3 |
| 2 |
| 3 |
=
| 2 |
| 3 |
| 5 |
| 3 |
=
| 2 |
| 5 |
| 3 |
| 5 |
| 3 |
| 5 |
=
| 3 |
| 5 |
| 8 |
| 5 |
=
| 3 |
| 8 |
1-
| 2 |
| 5 |
| 3 |
| 8 |
| 9 |
| 48 |
四2÷(
| 3 |
| 8 |
| 9 |
| 48 |
=四2÷
| 3 |
| 28 |
=488(元);
答:三个小组共捐款488元.
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