A Cross Used in Maths to Denote Addition
This page is the CodyCross answer for the clue below from The 70's, Group 336, Puzzle 3 (The Odessa File).
Question is: A Cross Used in Maths to Denote Addition
and the answer is: PLUSSIGN
Word Meaning:
PLUS SIGN — (arithmetic) The symbol + used to denote the operation of addition, to indicate that a number is positive, and so on.
Definitions from Wiktionary.