Math

division

Adding

Subtracting

Multiplication

If you're wanting the definitions of said words, here they are.

Math - the science of numbers and their operations

Division - the act or process of dividing

Adding - to combine (numbers) into an equivalent simple quantity or number

Subtraction - to take away by or as if by deducting

Multiplying - to find the product of by multiplication

If you were looking for different answers, be sure to more clear with your questions in the future.