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50 Cards in this Set

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