__Addition__-combing
numbers to get a total

__Sum__-the
result/answer you get when you combine (add) two numbers

__Addends__-the
numbers added together in an addition problem

__Zero__-the
absence of a number

__Subtraction__-the
difference between two numbers

__Difference__-the
result/answer of subtracting two numbers

__Multiplication__-adding
a number to itself a certain number of times

__Product__-the
result/answer you get when you multiply two numbers

__Division__-how
many times a number can go into another number; breaking a number up into equal groups

__Dividend__-the
number that is being broken up into groups (usually the bigger number)

__Divisor__-the
number that identifies how much will be in each group (usually the smaller number)

__Quotient__-the
result/answer you get when you divide two numbers