Programmed Math/Subtraction

Prerequisites: Addition

Subtraction deals with the taking away of numbers, like number a from number b so that: a >= b while b > a. Such a case is with:

$36-5=31$.

a = 36 and b = 5.

So a — b = 36—５ = 31, a >= b is true.

a>=b, like $36-5=31$.

But b>a, for example : $36-55=-19$.

a = 36 and b = 55.

$a-b=36-55=-19$.

Subtraction is the inverse of addition, meaning that it is the opposite.

$31+5=36$, $36-5=31$