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numbers that can be divided by 2 without a remainder 


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the answer to an addition problem 


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a part of a line that begins at a point and continues without end in one direction 


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an amount left after division 


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the numbers used to count 1,2,3,4,5,6,7... 


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the answer to a subtraction problem 


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an angle that measures 90 degrees 


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a fraction whose denominator of 100 is expressed as a percent sign 


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the period of time from midnight to just before noon 


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the period of time from noon until just before midnight 


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water freezes at this temperature 

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water boils at this temperature 

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water freezes at 32 degrees; water boils at 212 degrees 


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denominators that are the same; for example, 2/5 and 3/5 have common denominators 


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a small mark used to help keep track of a count 


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numbers that describe position or order 


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a product of a counting number and another number 


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operations that undo one another 


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numbers that have a remainder of one when divided by two 


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the answer to a multiplication problem 


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a group of three numbers related by addition and subtraction or by multiplication and division 


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mathematical method of learning shapes 


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a number in a sequence 1,3,5,7,9,11; a number that serves as a numerator or denominator in a fraction 


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a part of a line with two distinct endpoints 


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the bottom number of a fraction; the number that tells how many parts of a whole 


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a number that names the part of a whole 


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property of zero for multiplication 

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anything times zero is zero 


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all three angles are less than 90 degrees 


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a triangle with at least 2 sides of equal length 


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has the same shape but not necessarily the same size 


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any of the symbols used to write numbers 0,1,2,3,4,5,6,7,8,9 


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a way of writing a number that shows the value of each digit 


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communative property of multiplication 

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changing the order of factors does not change their product 


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any of the numbers multiplied in a multiplication problem 


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a straight collections of points extending in the opposite direction without end 


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the numbers added in an addition problem 


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identity property of addition 

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the sum of any number and 0 is equal to the initial number 


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lines in the same plane that are neither parallel nor perpendicular 


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a lot of numbers according to a certain rule 


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the opening that is formed when two line segments or rays intersect 


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an operation that separates a number into a given number of equal parts or into a number of parts of a given size 


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communative property of addition 

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changing the order of the addends does not change their sum 


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angle more than 90 degrees and less than 180 degrees 


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one of the angles is obtuse; more than 90 degrees and less than 180 degrees 


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one of the angles is a right angle90 degrees 


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of the two numbers of a fraction the number that tells how many parts of the whole are counted 


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identity property of multiplication 

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the product of any number and 1 is equal to the initial number 


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a number sentence that uses the symbol = to show that two quantities are equal 


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two lines that intersect at right angles 


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lines that stay the same distance apart; lines that do not cross 


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a whole number and a fraction together 


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all the numbers in this segment: 1,2,3,4,... 


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all the sides are all the same length 


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with three sides of different lengths 


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a whole number that divides another whole number without a remainder 


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a closed flat shape with straight sides 


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a point of an angle, polygon, or solid where two or more lines meet 


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the set of counting numbers, their opposites, and zero, the zero, the members of the set 


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a quadrilateral that has two pairs of parallel sides 


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a parallelogram with all four sides of equal length 


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a quadrilateral with exactly one pair of parallel sides 


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quadrilateral with no parallel sides 


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associative property of addition 

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the grouping of the addends does not affect their sum 


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a number by which another number is divided 


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the answer to a division problem 

