411 REFERENCE · Wikibooks
Programmed Math/Subtraction
Reference material by Wikibooks contributors. This retains its source identity and is not 411 news reporting.
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:
.
a = 36 and b = 5.
So a — b = 36—５ = 31, a >= b is true.
a>=b, like .
But b>a, for example : .
a = 36 and b = 55.
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Subtraction is the inverse of addition, meaning that it is the opposite.
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