Englishfor English speakers
arithmetic
Noun
—
The kind of mathematics in which addition, subtraction, multiplication, and division are done on numbers.
My son is starting to do simple arithmetic like math2 + 2 = 4/math.
addition
Noun
—
The part of arithmetic where numbers are added together.
He learned addition quickly.
An example of addition is math2+2=4/math.
—
The act of adding something.
The addition of 5 more topics will make the meeting very long and boring.
—
Anything that is added.
He put an addition on the house.