Math Vocabulary Words

Front 1

Array

Back 1

Items (such as objects, numbers, etc.)

arranged in rows and columns.

Front 2

Base

Back 2

The surface a solid object

stands on, or the bottom line

of a shape such as a triangle or rectangle.

Front 3

Composite Number

Back 3

When a number can be divided up evenly it is a Composite Number

Front 4

Dimension

Back 4

A measurement of length in one direction. Examples: width, depth and height are dimensions.

Front 5

Factor

Back 5

Factors are numbers you can multiply

together to get another number:

Example: 2 and 3 are factors of 6,

because 2 × 3 = 6.

A number can have MANY factors!

Front 6

Multiple

Back 6

The result of multiplying a number by an integer (not a fraction).

Examples:
12 is a multiple of 3, because 3 × 4 = 12 -6 is a multiple of 3, because 3 × -2 = -6

Front 7

Prime Number

Back 7

A Prime Number can be divided evenly only by 1, or itself.
And it must be a whole number greater than 1.

Example: 5 can only be divided evenly by 1 or 5, so it is a prime number.

Front 8

Rectangular Prism

Back 8

A solid (3-dimensional) object which has six faces that are rectangles.

Front 9

Volume = length x width x height

Back 9

Find the volume of a box with the

following dimensions: