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50 Cards in this Set
- Front
- Back
equal
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equivalent
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the sum of the value of the digits of a number (ex. 1,489 can be written as 1,000+400+80+9)
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expanded form
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to find an answer that is close to the exact answer -- to round
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estimate
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the amount of time taken to go from start to finish
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elapsed time
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the number obtained by subtracting one number from another
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difference
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the result of an addition problem
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sum
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a number used to tell order or position (second, third)
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ordinal number
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>
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greater than
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<
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less than
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a line on which a figure can be folded so that its two halves match exactly
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line of symmetry
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a number to be added
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addend
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the amount a container can hold
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capacity
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a figure that starts and ends at the same point
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closed figure
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figures that have the same shape and size
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congruent figures
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figures that have same shape but are different sizes
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similar
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the usual way to write a number
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standard form
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a number to be divided
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dividend
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the number by which the dividend is divided
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divsor
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the result of a division problem
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quotient
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an angle or square corner formed by perpedicular lines
measures 90 degress |
right angle
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an angle with a measure less than a right angle -- measure less than 90 degress
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acute
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an angle with a measure that is greater than a right angle -- more than 90 degress
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obtuse
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lines that intersect to form square corners
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perpendicular lines
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the difference between the greatest and the least numbers in a group
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range
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the middle number in a group of numbers ordered from least to greatest
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median
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the number that occurs most often in a collection of data
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mode
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the produc of a number and any whole number. 8 is a multiple of 4 because 2 x 4 =8
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multiple
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the number below the bar in a fraction
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denominator
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the number above the bar in a fraction
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numerator
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two or more fractions that name the same number
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equivalent fractions
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numbers that are multiplied to give a product
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factors
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to move a figure over a line-- reflection
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flip
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a fraction with a numerator that is greater than or equal to the denominator
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improper fraction
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a number that has a whole number and a fraction
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mixed number
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a straight path that has two endpoints
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line segment
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a two demensional figure that has one endpoint and goes on forever in one direction
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ray
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lines that never intersect
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parallel line
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A straight path that goes in two directions without end
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line
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a number that ends in 0,2,4,6,8,
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even number
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to move a figure alone a line--translation
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slide
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to rotate a figure around a point - rotation
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turn
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the common point of the two rays, sides of a polygon or 3D figure
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vertex
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A side of a 3 dimensional figure
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face
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a line segment where two faces of a 3D figure meet
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edge
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A number that ends in 1,3,5,7,9,
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odd number
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the number of cubic units that fit inside a 3-D figure
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volume
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a figure that has lenght, width, and height
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3 Dimensional figure
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the distance around a closed figure
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perimeter
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the number of square units needed to cover a surface
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area
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objects or symbols displayed in rows or columns
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array
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