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Definition


Term

Definition
Letters that represent numbers 


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To make a rough calculation 


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A group of mathmatical symbols that represent a number or quanity 


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A mathmatical statement containing an equal sign 


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like terms are terms containing the same variable 


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Definition


Term

Definition
A number that doesnt have a variable 


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A number that multiplies a variable 


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Definition
parentheses,eponents,multiply,divide,addition and subtraction 


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In multiplication and addition, numbers can be multiplied or added in any order and the answer will be the same 


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Definition
In addition and multiplication, numbers can be grouped in any order and the answer will be the same 


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multiply the number on the out side of the parentheses with the numbers on the inside of the parentheses, then add or subtract the numbers
EXAMPLE 2(3+4) 2x3+2x4 


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Definition
 Additive identity, +0  Multiplicative, x by 1 *** answer will be the original number 


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 additive inverse, plus the opposite EXAMPLE 4+4  multiplicative, multiply by the reciprocal 2/1x1/2 

