[問卦] 這個數學問題哪裡有問題?
大家好
小明手上有50元
支出 剩餘
買泡麵 20元 30元
買奶茶 15元 15元
買多多 9元 6元
買糖果 6元 0元
======================
總結 50元 51元
到底為啥剩餘的總結會是51元啊?
哪個部份有問題呢?
有高手可以解釋解釋嗎?
有沒有卦?
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噓
04/14 20:46,
2周前
, 1F
04/14 20:46, 1F
推
04/14 20:46,
2周前
, 2F
04/14 20:46, 2F
推
04/14 20:47,
2周前
, 3F
04/14 20:47, 3F
→
04/14 20:47,
2周前
, 4F
04/14 20:47, 4F
噓
04/14 20:47,
2周前
, 5F
04/14 20:47, 5F
推
04/14 20:47,
2周前
, 6F
04/14 20:47, 6F
→
04/14 20:47,
2周前
, 7F
04/14 20:47, 7F
→
04/14 20:47,
2周前
, 8F
04/14 20:47, 8F
→
04/14 20:47,
2周前
, 9F
04/14 20:47, 9F
→
04/14 20:47,
2周前
, 10F
04/14 20:47, 10F
→
04/14 20:47,
2周前
, 11F
04/14 20:47, 11F
→
04/14 20:59,
2周前
, 12F
04/14 20:59, 12F
→
04/14 20:59,
2周前
, 13F
04/14 20:59, 13F
→
04/14 20:59,
2周前
, 14F
04/14 20:59, 14F
→
04/14 20:59,
2周前
, 15F
04/14 20:59, 15F
推
04/14 21:00,
2周前
, 16F
04/14 21:00, 16F
→
04/14 21:00,
2周前
, 17F
04/14 21:00, 17F
噓
04/14 21:01,
2周前
, 18F
04/14 21:01, 18F
→
04/14 21:07,
2周前
, 19F
04/14 21:07, 19F
推
04/14 21:07,
2周前
, 20F
04/14 21:07, 20F
→
04/14 21:07,
2周前
, 21F
04/14 21:07, 21F
→
04/14 21:13,
2周前
, 22F
04/14 21:13, 22F
推
04/14 21:29,
2周前
, 23F
04/14 21:29, 23F
推
04/14 23:20,
2周前
, 24F
04/14 23:20, 24F
噓
04/14 23:26,
2周前
, 25F
04/14 23:26, 25F
→
04/14 23:26,
2周前
, 26F
04/14 23:26, 26F
噓
04/15 00:04,
2周前
, 27F
04/15 00:04, 27F
推
04/15 00:09,
2周前
, 28F
04/15 00:09, 28F
→
04/15 01:04,
2周前
, 29F
04/15 01:04, 29F
討論串 (同標題文章)