[解題] 小五數學???
1.年級:小學五年級
2.科目:數學
3.題目:1/13=1/x+1/y,x不等於y,求x+y=?
4.註:想確認這是否為國小五年級數學
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推
07/14 22:53, , 1F
07/14 22:53, 1F
推
07/14 22:54, , 2F
07/14 22:54, 2F
推
07/14 22:54, , 3F
07/14 22:54, 3F
推
07/14 22:55, , 4F
07/14 22:55, 4F
→
07/14 23:02, , 5F
07/14 23:02, 5F
→
07/14 23:57, , 6F
07/14 23:57, 6F
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