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### 12 Cards in this Set

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 numerical expression Numbers and operations to be performed on them. 2+1-3 variable A letter used to represent one or more numbers. Example=x. variable expression Numbers and variables and operations to be performed on them. x+1-3 power Two parts: base and exponent order of operations Parentheses Exponents Multiplication/Division Addition/Subtraction formula Numbers, operations, and two or more variables. Used to find something specific, like Area or Perimeter. sequence An ordered list of numbers. commutative property of addition In a sum, you can add terms in any order. a+b=b+a or 6+9=9+6 commutative property of multiplication In a product, you can multiply factors in any order. a*b=b*a or 4*7=7*4 associative property of addition Changing the grouping of terms will not change the sum. (a+b)+c=a+(b+c) or (9+5)+6=9+(5+6) associative property of multiplication Changing the grouping of factors will not change the product. (a*b)*c=a*(b*c) distributive property a(b+c)=ab+ac 4(3+8)=4(3)+4(8)