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# Math Vocabulary

### Chapter 1 and 2 Vocabulary

TermDefinition
rational number a number that can be written as a/b where a and b are integers
whole number the numbers 1,2,3,4,5
terminating decimal a decimal that ends 1.5 , 2.58 - 5.605
repeating decimal a decimal that has a pattern that repeats
Integer the set of whole numbers and their opposites
absolute value the distance between a number and 0 on a number line ; the absolute value of a number a is written as |a|
Opposites two numbers that are the same distance from 0 on a number line , but on opposite sides of the 0 (-3 , 3) are opposites
additive inverse the opposite of a number
associative property of addition changing the grouping of addends does not change the sum
associative property of multiplication changing the grouping of factors does not change the product
commutative property of addition changing the order of addends does not change the sum
commutative property of multiplication changing the order of factors does not change the product
distributive property to multiply a sum or difference by a number , multiply each number in the sum or difference by the number outside the parenthesis than evaluate
order of operations the order in which to perform operations when evaluating expressions with more than one operation
Created by: haleythomas23