728187 - 70312 =

Math subtraction is realised with the help of the minus sign.

Math subtraction is also defined as being the inverse of the addition. If we substract a number from 0, it remains unchanged

The denomination of the subtraction members are minulend - substractor (or substrahen)= difference.

2 - 1 = 1

5 - 2 = 3

3 - 3 = 0

By learning math, you learn to think.