Math Terms

Digit

• A number

Compare

• To see how things are alike or different -

Penny

• Coin equaling 1 cent

Denominator

• The bottom number of a fraction

Subtraction

• To take two numbers

and find the difference.

Fact Family

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

Columns

A vertical row or list

Product

• The answer to a multiplication problem

Divisor

• The number that is doing the dividing.

3

Rounding(Estimate)

• To assign an approximate value, usually to the nearest multiple of 10

63 = 60766 = 800

Multiplication Facts

Table

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

Side

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

side

Quadrilateral

• 4 sided polygon

Pentagon

• 5 sided polygon

Edge

• The line between two vertices

Cylinder

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

Triangular Pyramid

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

Horizontal

• Straight across, parallel to the ground

Rotation

• Turning a shape

Yard

• (3 feet) – 36 inches – Measures length

Kilometer

• 1000 meters

Capacity

• The most that something can contain or hold

Quart

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

4 qt = 1 gallon

Volume

• Length X Width X Height = Volume

Temperature

• The measurement of heat

Pictograph

• A graph using pictures to display data

Probability

• Strong likelihood or chance of something

Expanded Notation

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

Place Value

• A way to know the value of each digit

Greater Than

• Symbol used when comparing numbers

Coins

• Metal objects with a monetary value

Quarter

• 25 cents

Equal

• When two numbers are worth exactly the same amount

Fraction

• A part of a whole

Minus

• Subtraction – to find the difference between digits

Sum

• The answer to an addition problem

3

Factor

• The numbers that you multiply together

7 X 3 = 21factors

Quotient• Answer to a division problem

5

Vertices

• The point where two edges or lines meet

Triangle

• 3 sided polygon

Rhombus

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

Hexagon

• 6 sided polygon

Face

• The flat surface of a 3 dimensional shape

Rectangular Prism

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

Translation

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

Fahrenheit

• Unit to measure temperature

Scale/Interval

• The measured distance between two points.

Less Than

• Used when comparing two numbers

Dime

• Coin worth 10 cents

Half-Dollar

• Coin worth 50 cents

Halves

• When something is divided equally into 2 parts

Equivalent

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

Plus

• Adding together digits

Operation

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

Regrouping

• To carry numbers from one place value to another

Rows

• going across (usually in an array)

Increasing

• Getting larger

Angles

• Formed by 2 rays, starting at a vertex

Square

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

Trapezoid

• 4 sided polygon having exactly one pair of parallel sides

Octagon

• 8 sided polygon

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

Sphere

• Figure with all points the same distance from the center

Congruent

• Same size, same shape

Diagonal

• From one vertex to another vertex in a polygon…but not directly across

Perimeter

• Measurement around the outside of a shape.

Perimeter = 18

Analog

• A clock with a face and hands

Nickel

• Coin worth 5 cents

Dollar

• Currency worth 100 cents

Numerator

• The top number of a fraction

NOT equal to

• Two digits that do not mean the same thing.

Addend

• The numbers you add together

addends

Array

• Order or arrangement that helps in multiplication

Remainder

• What is left over after you divide

1

Pattern

• A repeating order or arrangement following a rule

Decreasing

• Getting smaller

Circle

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

Rectangle

• 4 sided polygon having all right angles

Parallelogram

• 4 sided polygon with two pair of parallel lines

Vertex

• Point where two sides of a polygon meet

Cube

• 3 dimensional shape with six square sides

Square Pyramid

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

Lines of Symmetry

• The line which divides a shape into 2 exact sides

Reflection

• Mirror image

Area

• The space inside an object

Liter

• Metric unit to measure liquid

Digital

• A display in a digital form

Bar Graphs

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

Dividend

• The number you are dividing

16

Foot

• 1 foot = 12 inches

Meter• 1 meter = 100 centimeters

Gallon

• 1 gallon = 4 quarts

Pint

• 1 pint = 2 cups

Cup

• 1 cup = 8 fl. oz

Mile

• 1 mile = 1,760 yards

Ton

• 1 ton = 2,000 pounds

Pound

• 1 pound = 16 ounces

Gram

• 1 gram = 1,000 milligrams

Kilogram

• 1 kilogram = 1,000 grams

Tenths

• 0.4 or .4

• Read: four tenths

• 4

10

Hundredths

• 0.24 or .24

• Read : twenty-four hundredths

• 24

100