I believe there are two other expressions for average. One is 'mean', and the other is 'central tendency'.
Measure of averages.
what does key mean in math
Tendency - an inclination or predisposition to do something
I do not know of such a word related to math(s)
Aversion is the antonym for the word tendency.
the word by means 'times' or 'multiply'
The word at means the least
The opposite of
it mean per rate
There is no such math word, so it does not mean anything. You may wish to check your spelling before posting questions!
in math terms reduce means to simplify