Math Vocabulary

Front

An unknown amount.

Back

Variable: A symbol used to represent an unknown value in mathematics.

Front

A 2-dimensional shape, closed, with straight sides.

Back

Polygon: A flat shape with straight sides, such as a triangle or square.

Front

2 numbers that are the same distance from zero, one is positive, one is negative.

Back

Opposite: Two numbers that are equal in magnitude but have different signs.

Front

Two lines that make a right angle.

Back

Perpendicular: Lines that intersect at a 90-degree angle.

Front

Any number that stops or repeats.

Back

Rational Number: A number that can be expressed as a fraction of two integers.

Front

A number that can be written without a fractional component.

Back

Integer: Whole numbers that can be positive, negative, or zero.

Front

The distance from zero on a number line, regardless of direction.

Back

Absolute Value: The non-negative value of a number without regard to its sign.

Front

A comparison of two quantities by division.

Back

Ratio: A relationship between two numbers indicating how many times the first number contains the second.

Front

The amount of space inside a shape.

Back

Area: The measure of the surface enclosed by a shape.

Front

The distance around a shape.

Back

Perimeter: The total length of the sides of a polygon.