Xiao Ming borrowed 500 yuan from his father and 500 yuan from his mother. He spent 970 yuan to buy clothes, returned 10 yuan to his mother, returned 10 yuan to his father, and left 10 yuan on himself. He owed 490 yuan to his mother and 490 yuan to his father. 490 + 490 = 980 yuan, plus 10 yuan to himself. A total of 990 yuan. Where did the 10 yuan go

Xiao Ming borrowed 500 yuan from his father and 500 yuan from his mother. He spent 970 yuan to buy clothes, returned 10 yuan to his mother, returned 10 yuan to his father, and left 10 yuan on himself. He owed 490 yuan to his mother and 490 yuan to his father. 490 + 490 = 980 yuan, plus 10 yuan to himself. A total of 990 yuan. Where did the 10 yuan go


980 yuan owed to parents = 970 yuan of clothes + 10 yuan in hand



I borrowed 500 yuan from my father, borrowed 500 yuan from my mother, bought a pair of shoes 970 yuan, left 30 yuan, returned 10 yuan to my father, returned 10 yuan to my mother, 490 plus 490 equals 980, 980 plus the remaining 10 yuan equals 990 yuan, where is the other 10 yuan?


It's equivalent to borrowing 500-10 = 490 yuan from both parents, and a total of 490 × 2 = 980 yuan. It costs 970 yuan, but of course there are still 10 yuan left. The sign is wrong