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An expression that contains sums and/or products of variables and numbers. 


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Definition


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making a conjure based on a pattern of examples or past events 


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a expressing such as 1+2*5 


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to find an answer to an expression 


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first simplify the expressions inside group symbols, then do all * or / from left to right, and then doing all + and  from left to right 


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a placeholder for any value 


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substitution property of equality 

Definition
replacing a variable with a number 


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Definition
choosing a variable and a quantity for the variable to represent 


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Definition
statements that are true for any numbers 


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commutative property of addition 

Definition
represented by 8+3 or 3+8 


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commutative property of multiplacation 

Definition
3*8 or 8*3 represent this property 


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Definition
the way in which numbers are grouped when added or multiplied does not change the sum or the product 


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an example that shows a conjecture is not true 


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to write algebraic expressions in a simpler form 


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the process of using facts, properties, or rules to justify reasoning or reach valid conclusions 


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a mathematical sentence taht contains an equals sign 


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an equation that contains a variable 


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a value for the variable that makes an equation true 


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the process of finding a solution 


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a system that is used to locate points 


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the horizontalnumber line 


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the point where the x and y axis intersect (0,0) 


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the second name for the coordinate system 


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used to locate any points on a coordinate plane 


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the first number in an ordered pair 


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the second number in a ordered pair 


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to draw a dot at the point that corresponds to the ordered pair 


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a graph that shows the relationship between two sets of data 


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whole numbers and their opposites 


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the number that corresponds to a point 


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a mathematical sentence containing a less than or greater than sign 


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two numbers on opposite sides of zero, but are the same distance away 


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Definition
two numbers with the same absolute value but different signs 


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an integer and its opposite 


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four regions on the coordinate plane that are separated by the x and y axis 


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the same as the mean of a set of data 


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Definition
the average of a set of data 

