What is the name of the sign indicating positive or negative numbers
I want to describe patterns where there are numbers in pairs like these: -1 and +1, -944 and +944.
Now I want to write a sentence that someone should "look for equal numbers just with opposite X". What is an appropriate word to fill in for X.
Pairs of numbers like 1 and -1 or +944 and -944 are said to have
Equal magnitude, but opposite sign