Current location - Training Enrollment Network - Mathematics courses - The math problem in the first grade is very difficult.
The math problem in the first grade is very difficult.
Finally, 10 yuan was added in the wrong place.

Borrow 500 yuan from dad+borrow 500 yuan from mom = buy shoes, 970 yuan +30 yuan,

(Borrow 500 yuan from dad-10 yuan)+(Borrow 500 yuan from mom-10 yuan) = Buy shoes 970 yuan +(30 yuan-10 yuan-10 yuan),

Owe dad 490 yuan+owe dad 490 yuan = buy shoes 970 yuan +65438+ 00 yuan left.