FCAT Math Terms

Word Bank 1

Acute Angle

An angle with a measure of less than 90 degrees.

Angle

The shape made by two rays extending from a common end point, the vertex.

Angle

Ray

Ray

Vertex

Area

The inside region of a two-dimensional figure measured in square units.

Area= Length X Width

Length

Width

Base

The line or plane upon which a figure is thought of as resting.

Base

Capacity

The amount of space that can be filled (usually refers to fluids).

Congruent

Figures or objects that are the same shape and the same size.

=

Composite

A whole number that has more than two factors.

6

16 2 3

Decimal Number

Any number written with a decimal point in the number.

5.8 8.02

12.0039,128.1

Equation

A mathematical sentence that equates one expression to another expression.

3X+2 = 9XExpression Expression

Equivalent forms of a Number

The same number expressed in different forms.

3/4 is the same as 0.75 is the same as 75%

Estimation

The use of rounding and/or other strategies to determine a reasonably accurate approximation, without calculating an exact answer.

Factor

A number or expression that divides exactly another number.

6

16 2 3

Flip

A transformation that produces the mirror image of a geometric figure. Also called a Reflection.

Fraction

Any part of a whole.

3/5 9/10

8/15

Grid

A network of evenly spaced, parallel horizontal, and vertical lines.

Inequality

A sentence that states one expression is greater than, greater than or equal to, less than, less than or equal to another expression.

5<38>7

Length

A one-dimensional measure that is the measurable property on line segments.

18 cm

9 cm

Mean

The arithmetic average of a set of numbers.

3, 6, 9, 11, 22

Mean = 10

Median

The middle point of a set of ordered numbers where half of the numbers are above and half are below it.

3, 6, 9, 11, 22Median=9

Mode

The score or data point found most often in a set of numbers.

3, 6, 6, 9, 11, 22

Mode = 6