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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题目内容
2 |
f |
f |
5 |
2 |
3 |
2 |
3 |
2 |
3 |
5 |
3 |
2 |
5 |
3 |
5 |
3 |
5 |
3 |
5 |
8 |
5 |
3 |
8 |
2 |
5 |
3 |
8 |
9 |
48 |
3 |
8 |
9 |
48 |
3 |
28 |