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numerator

the top # of a fraction

ordinal numbers

#s that indicate position or order

operations of arithmetic

addition, subtraction, multiplication and division

parentheses

a pair of symbols used to set apart parts of a problem so that those parts are done first

product

answer to a multiplication problem

remainder

an amount left after division

sequence

a list of #s following a rule or plan

sum

the answer to an + problem

term

a # in a sequence

tick marks

the lines on a number line that represent each number

addends

#s that are added together

algorithm

the way you solve a problem

associattive property of +

the grouping of addends does not affect their sum

associative property of X

the grouping of factors does not affect their product

denominator

the bottom # of a fraction

difference

the answer to a subtraction problem

factor

a whole # that divided another whole # without a remainder

fraction

a part of a whole

geometry

the study of shapes

horizontal

side to side