Math Terms

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Math Terms
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Digit

• A number

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Compare

• To see how things are alike or different -

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Penny

• Coin equaling 1 cent

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Denominator

• The bottom number of a fraction

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Subtraction

• To take two numbers
• and find the difference.

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Fact Family

• Numbers that are related to each other when
  either adding or subtracting or multiplying and
  dividing.

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Columns

• A vertical row or list

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Product

• The answer to a multiplication problem

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Divisor

• The number that is doing the dividing.

3
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Rounding(Estimate)

• To assign an approximate value, usually to the
  nearest multiple of 10
• 63 60
• 766 800

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Multiplication Facts
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Table

• A way to display information so that it is easy
  to read and understand

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Side

• The surface of an object or the lines binding a
  geometric figure

side
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Quadrilateral

• 4 sided polygon

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Pentagon

• 5 sided polygon

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Edge

• The line between two vertices

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Cylinder

• A 3 dimensional shape with a curved surface and
  two circular faces.

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Triangular Pyramid

• A 3 dimensional figure with a triangular base and
  3 sides coming to a point.

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Horizontal

• Straight across, parallel to the ground

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Rotation

• Turning a shape

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Yard

• (3 feet) 36 inches Measures length

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Kilometer

• 1000 meters

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Capacity

• The most that something can contain or hold

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Quart

• Measurement of capacity that is equal to ¼ of a
  gallon

4 qt 1 gallon
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Volume

• Length X Width X Height Volume

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Temperature

• The measurement of heat

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Pictograph

• A graph using pictures to display data

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Probability

• Strong likelihood or chance of something

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Expanded Notation

• A way to write a number by showing each digits
  value

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Place Value

• A way to know the value of each digit

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Greater Than

• Symbol used when comparing numbers

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Coins

• Metal objects with a monetary value

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Quarter

• 25 cents

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Equal

• When two numbers are worth exactly the same amount

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Fraction

• A part of a whole

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Minus

• Subtraction to find the difference between
  digits

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Sum

• The answer to an addition problem

3
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Factor

• The numbers that you multiply together

7 X 3 21
factors
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Quotient

• Answer to a division problem

5
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Vertices

• The point where two edges or lines meet

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Triangle

• 3 sided polygon

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Rhombus

• 4 sided polygon with all four sides of equal
  length.

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Hexagon

• 6 sided polygon

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Face

• The flat surface of a 3 dimensional shape

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Rectangular Prism

• Solid figure where all sides are rectangles and
  all sides meet perpendicular.

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Translation

• A figure that is moved but keeps its same
  orientation to the axis. (A SLIDE)

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Fahrenheit

• Unit to measure temperature

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Scale/Interval

• The measured distance between two points.

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Less Than

• Used when comparing two numbers

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Dime

• Coin worth 10 cents

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Half-Dollar

• Coin worth 50 cents

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Halves

• When something is divided equally into 2 parts

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Equivalent

• When two numbers or fractions are equal or worth
  the same amount

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Plus

• Adding together digits

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Operation

• The math involved to solve a problem (add,
  subtract, multiply, divide)

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Regrouping

• To carry numbers from one place value to another

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Rows

• going across (usually in an array)

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Increasing

• Getting larger

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Angles

• Formed by 2 rays, starting at a vertex

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Square

• 4 sided polygon having equal length sides meeting
  at right angles

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Trapezoid

• 4 sided polygon having exactly one pair of
  parallel sides

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Octagon

• 8 sided polygon

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Cone

• Figure created by connecting every point of a
  circle to a point not in the place of the circle.
  The point is called the vertex and the circle is
  called the base

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Sphere

• Figure with all points the same distance from the
  center

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Congruent

• Same size, same shape

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Diagonal

• From one vertex to another vertex in a
  polygonbut not directly across

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Perimeter

• Measurement around the outside of a shape.

Perimeter 18
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Analog

• A clock with a face and hands

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Nickel

• Coin worth 5 cents

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Dollar

• Currency worth 100 cents

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Numerator

• The top number of a fraction

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NOT equal to

• Two digits that do not mean the same thing.

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Addend

• The numbers you add together

addends
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Array

• Order or arrangement that helps in
  multiplication

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Remainder

• What is left over after you divide

1
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Pattern

• A repeating order or arrangement following a rule

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Decreasing

• Getting smaller

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Circle

• A polygon with all points the same distance from
  the center.

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Rectangle

• 4 sided polygon having all right angles

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Parallelogram

• 4 sided polygon with two pair of parallel lines

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Vertex

• Point where two sides of a polygon meet

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Cube

• 3 dimensional shape with six square sides

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Square Pyramid

• A figure with a square base with all four sides
  meeting at a point

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Lines of Symmetry

• The line which divides a shape into 2 exact sides

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Reflection

• Mirror image

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Area

• The space inside an object

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Liter

• Metric unit to measure liquid

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Digital

• A display in a digital form

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Bar Graphs

• A way to display data using bars to represent
  your numbers

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Dividend

• The number you are dividing

16
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Foot

• 1 foot 12 inches

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Meter

• 1 meter 100 centimeters

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Gallon

• 1 gallon 4 quarts

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Pint

• 1 pint 2 cups

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Cup

• 1 cup 8 fl. oz

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Mile

• 1 mile 1,760 yards

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Ton

• 1 ton 2,000 pounds

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Pound

• 1 pound 16 ounces

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Gram

• 1 gram 1,000 milligrams

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Kilogram

• 1 kilogram 1,000 grams

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Tenths

• 0.4 or .4
• Read four tenths
• 4
• 10

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Hundredths

• 0.24 or .24
• Read twenty-four hundredths
• 24
• 100