Borrow 500 from my father, borrow 500 from my mother, it cost 970 to buy things, 30 left, 10 yuan for my father, 10 yuan for my mother, 10 yuan for myself, 490 for my father, 490 for my mother I borrowed 500 from my father and 500 from my mother. It cost 970 to buy things, but there was 30 left, 10 yuan for my father, 10 yuan for my mother, 10 yuan for myself, 490 yuan for my father, 490 yuan for my mother, 980 yuan in total, and 10 yuan for myself, 990 yuan in total. Where is the remaining 10 yuan!

Borrow 500 from my father, borrow 500 from my mother, it cost 970 to buy things, 30 left, 10 yuan for my father, 10 yuan for my mother, 10 yuan for myself, 490 for my father, 490 for my mother I borrowed 500 from my father and 500 from my mother. It cost 970 to buy things, but there was 30 left, 10 yuan for my father, 10 yuan for my mother, 10 yuan for myself, 490 yuan for my father, 490 yuan for my mother, 980 yuan in total, and 10 yuan for myself, 990 yuan in total. Where is the remaining 10 yuan!

You can't cut 10 from 500 Li. It should be like this. It costs 970 to buy things. This 970 is shared by parents. Parents are 485 each. You're changing back to 10 each. Parents are 495 each. Plus your 10, it's just 500. What's up