In Math, It's a Number That Is Added to Another

This page is the CodyCross answer for the clue below from Toys, Group 1839, Puzzle 2 (Video Games).

Question is: In Math, It's a Number That Is Added to Another

and the answer is: ADDEND

Word Meaning:

ADDEND — (mathematics) Addendum, any one of two or more numbers or other terms that are to be added together.

Definitions from Wiktionary.