Numbers that are added are called addends or terms.
addend
Addend
Addition, and addends are the numbers being added.
Since the set of rational numbers is closed under addition, any rational number added to 0.5 will total another rational number.
In 1 + 2 = 31 and 2 are the addends and 3 is the sum of the two addends.
Addend is the number being added to another number in an addition problem to derive a sum.
That would be an addition problem such as 2+3=5 5 would be the sum.
Addition.
addition a number
addend
This is called addition.
ADDITION
Addend
the plus sign
Addition, and addends are the numbers being added.
The numbers to be added are called addends. The answer is called the sum.
Addend plus addend equals sum.