Composite
Number
Expanded
Notation
Greatest Common
Factor (GCF)
Least Common
Denominator (LCD)
Least Common
Multiple (LCM)
Line Plot
Plane
Prime Number
Mean
Median
Mode
Range
Regular Polygon
Similar Polygons
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A way to write numbers to show the
value of each digit.
A whole number that has more than
2 factors.
(3,217=3,000 + 200 + 10 + 7)
(20-1, 2, 4, 5, 10, 20)
The least common multiple of the
denominators of two fractions.
2/3 and 5/6 6 is the LCM.
The largest factor 2 numbers have in
common.
10: 1, 2, 5, 10
20: 1, 2, 4, 5, 10, 20
10 is the GCF of 10 and 20.
The smallest number that is a
common multiple of two numbers.
12 is the LCM of 3 and 4.
A whole number that has exactly 2
factors. 1 and itself.
Useful for thinking about lines and
line segments.
Ex. 2, 3, 5, 7, 11, 13, 17, 19, 23, 29
The middle number (or the number
in between the two middle
numbers).
1, 3, 5, 7, 9
A flat surface that extends infinitely
in all directions.
The median is 5.
A.K.A. Average
Add up all of the numbers and
divide by how many numbers you
added.
The difference between the greatest
The number or numbers that occur
and least number in a set of data.
most often in a set of data.
3, 5, 7, 8, 9, 10
The range is 7 because 10-3=7
1, 3, 3, 5, 7, 9, 11 The mode is 3.
Polygons with the same shape, but
not necessarily the same size.
A polygon with all sides and angles
the same size and shape
(congruent).
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Translation (Slide)
Rotation (Turn)
Reflection (Flip)
Venn Diagram
X-Axis
Y-Axis
Whole Number
Triangle
Parallel
Quadrilateral
Square
Rectangle
Rhombus
Trapezoid
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Rotation of a shape over a fixed point.
Sliding a shape over with no
turns or flipping.
Flip of a shape like a mirror
image.
Horizontal Axis
Vertical Axis
Polygon with 3 sides.
Any whole number 0, 1, 2, 3, 4, etc.
Polygon with 4 sides.
A polygon that has 4 sides, at least
2 sets of equal sides, 4 right angles,
and is a parallelogram.
A polygon that has 4 equal sides, 4
right angles, and is a parallelogram.
A polygon with 4 sides and one set
of parallel sides.
A polygon with 4 equal sides.
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Right Angle
Obtuse Angle
Acute Angle
Pentagon
Hexagon
Octagon
Area
Congruent
Cone
Cube
Cylinder
Edge
Equation
Equivalent
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An angle that measures more than
90 degrees.
An angle that measures exactly 90
degrees.
Polygon with 5 sides.
An angle with a measure less than
90 degrees.
Polygon with 8 sides.
Polygon with 6 sides.
The same size and shape.
Measure in square units of the inside
of a figure.
Solid with 6 square faces.
Circular base. One vertex.
The line segment where two faces of a
solid figure meet.
3-D figure with two circular bases.
Having the same value.
A statement that has an equal sign.
½ = 0.50 = 50% or 2/3 = 4/6
34 + 7 = 41 or x = 7
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Expression
Face
Fact Family
Factor
Inequality
Line
Line of Symmetry
Line Segment
Multiples
Number Sentence
Ordered Pair
Parallelogram
Perimeter
Perpendicular
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Expression
One side of a solid figure.
A whole number that divides evenly
into another whole number.
Ex. Factors of 20
20: 1, 2, 4, 5, 10, 20
Example:
6 + 9 = 15
9 + 6 = 15
15 – 9 = 6
15 – 6 = 9
A math sentence that shows the two
sides are not equal.
A line is straight and goes on forever
in both directions.
Ex. 3 + 4 > 6
A part of a line with two endpoints.
A line that splits a shape into equal
parts.
An equation or inequality with
numbers.
4+5=9
4 + 5 < 11
The product of two whole numbers.
Example: Multiples of 4
4, 8, 12, 16, 20, 24, etc.
Quadrilateral with two sets of
parallel sides.
A pair of numbers that locate a
point on a grid.
(2, 3) (x, y)
Two lines that meet to create right
angles.
The distance around a figure.
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Transformation
Pyramid
Ray
Rectangular Prism
Right Angle
Right Triangle
Sphere
Tally Chart
Vertex
Volume
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rectangular pyramid
triangular pyramid
The moving of a shape by a
translation (slide), reflection (flip), or
rotation (turn).
A figure with 6 rectangular faces.
A part of a line with one
endpoint that continues forever in one
direction.
A triangle that has a 90 degree
angle.
Right Angle
Favorite School Lunches
Hamburger
Pizza
Salad
Hotdog
The amount of space a solid figure
can hold.
Ex. Amount of juice in a jar.
vertex
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