addition- sum subtraction- difference
It is called a question.
the sum
Commutativity of addition or the fact that addition is Abelian.
Let's say we have the addition problem 1 + 2 = 3 1 and 2 are the addends. 3 is the sum.
the answer is the addition fraction answer
the addition sign
Such an addition is called a postscript (or a PS for short).
addition- sum subtraction- difference
sum
The numbers in addition sentences are called addends . :)
identity property of addition associative property
Repeated addition
It is called a question.
the sum
The addends.
No one knows.