In the subtraction formula, the number before the minus sign is the minuend, the number after the minus sign is the minuend, and the number after the equal sign is the difference.

Evolution of formula:

Negative = negative+difference

Subtraction = minuend-difference

Difference = minuend-minuend

There are many examples in life that can be defined by minuend and reduction. For example, my mother only had three apples and gave them to my brother. My brother saw it and asked my brother for an apple. My brother gave one to my brother, so my brother's apple was reduced, and my brother's apple was reduced.

3 apples (minuend)-1 apple (minuend) =2 apples (difference)