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# Math Vocabulary

TermDefinitionExample
Prime Numbers A natural number greater than one that has no positive factors other than one and itself 2, 3, 5, 7, 11, 13, ...
Real Number A value that represents any quanitity along a number line 4 0 -17 1/2 4/3 4.1 pi
Natural Numbers Counting Numbers 1, 2, 3, ...
Whole Numbers Natural numbers and zero 0, 1, 2, 3, ...
Integers Whole numbers and their opposites ...-3, -2, -1, 0, 1, 2, 3, ...
Rational Numbers n/m where n and m are integers and m does not equal zero 3/2 2/9 -6/10 5 = 5/1 0.5 = 1/2
Irrational Numbers Any real number tha cannot be written as a fraction pi square root of 2
Order of Operations Steps taken to simplify an expression PEMDAS
Absoulte Value The distance a number is from zero |4| = 4 |-8| = 8
Radical An expression that uses a root, such as a square root or cube root
Expression A mathematical sentence using numbers, variables and operations, but not an equal sign or inequality 2x + 3 - 8
Variable A letter used to represent a number x y z t
Adding words Plus, more then, sum, add, increase, addition five plus two, what is the sum of two and eight. Three increased by two
Multiplying words Times, multiple , ***product**** Eight time two, the multiple of two... the product of two and five is...
Subtracting words Decreased, minus, subtract, subtraction, Eight decreased by two is... Nine minus two is... Subtract two from four..
Dividing words Quotient, divided by, divide, goes into The quotient of four and one is.. Four divided by two is... 24 gose into four how many times..
Three cubed 3^3 Three to the three on top (3, then three exponent)
cubed root 3 then square root sign thee then square root sign
Factors Numbers that can be multiplied to get another number 1 * 27 = 27 and 5 * 10 = 50