RISD 4th 9 wks. math vocab.
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| sum | the answer to an addition problem
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| difference | the answer to a subtraction problem
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| product | the answer to a multiplication problem
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| quotient | the answer to a division problem
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| factor | a number that is multiplied by another number to find a product
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| multiple | the product of a number and any whole number
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| least common multiple | the smallest number, other than 0, that is a common multiple of two or more numbers
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| greatest common factor | the largest factor that two or more numbers have in common
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| prime number | a whole number greater than one with exactly two factors, 1 and itself
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| composite number | a whole number that has more than two whole number factors
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| percent | the ratio of a number to 100
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| ratio | a comparison of two quantities
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| squared | raised to the power of 2
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| factor tree | a diagram showing the prime factorization of a number
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| prime factorization | a composite number expressed as the product of its prime factors
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| approximate | to estimate or come close to
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| expression | a mathematical combination of numbers, variables, and operations
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| equation | a mathematical sentence stating that two expressions are equal
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| order of operations | the process of solving math expressions (PEMDAS: parenthesis, exponents, multiplication/division left to right, addition/subtraction left to right)
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| median | the middle number in a set of data when the data is arranged in order
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| mode | one of the values appearing most often in a set of data
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| range | the difference between the highest and lowest values in a set of data
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| mixed number | a whole number plus a fraction
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| improper fraction | a fraction whose numerator is greater than or equal to its denominator
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| area | the number of square units needed to cover a surface (the inside of a shape)
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| perimeter | the distance around the outside of a 2 dimensional shape
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| diameter | a line segment that passes through the center of a circle and endpoints on the circle
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| radius | a line segment from the center of a circle to any point on the circle
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| circumference | the distance around a circle
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| parallelogram | a quadrilateral with opposite sides parallel and congruent and opposite angles are congruent
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| rhombus | a parallelogram whose four sides are congruent and whose opposite angles are congruent
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| triangle | a 3 sided polygon; all angles equal 180 degrees
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| quadrilateral | a 4 sided polygon; all angles equal 360 degrees
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| trapezoid | a quadrilateral that has only one pair of parallel sides
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| octagon | an 8 sided polygon
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| hexagon | a 6 sided polygon
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| pentagon | a 5 sided polygon
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| obtuse angle | an angle with a measure of more than 90 degrees but less than 180 degrees
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| acute angle | an angle that measures greater than zero degrees and less than 90 degrees
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| right angle | an angle with a measure of 90 degrees
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| equilateral triangle | a triangle with 3 equal sides
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| isosceles triangle | a triangle with 2 congruent sides
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| scalene triangle | a triangle with no congruent ides
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| vertex/vertices | the point where 2 rays meet, where 2 sides of a polygon meet, or where the edges of a 3D shape meet; the top point of a cone or pyramid
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