The formula of mathematical pumpkins in grade one is: 8 pumpkins →5 pumpkins, 3 pumpkins are pushed away, leaving 0 pumpkins, and 8-5-3=0 pumpkins.

There are numbers in the box. As can be seen from the following equal sign, because Xiaoxue's first grade can only be a problem of addition and subtraction, that is to say, three numbers are added and subtracted to get a result. After reading the picture, the boxes in the picture are grouped by balls.

example

A=5 equation.

2+3=5 equation.

2+3=a+b=6+c equation.

2+5≠ 10 inequality.