# Math Dictionary For Children

(Symbol: ° )

## Diamond

A two-dimensional shape with four equal sides where the angles are not right angles. The correct name is rhombus. Examples

## Directed Numbers

Numbers that have + and – signs on them. They are also called integers. We can show them on a number line or axes Example

## Composite Number

A number with factors other than itself and one. Examples 12=12×1=3×4=3x2x2 33=33×1=3×11 Both twelwe and thirty-three are composite numbers. Seventeen and twenty-three are not composite… Read More »Composite Number

## Collinear

Three of more points that lie on the same straight line. Example

## Coefficient

The number (constant term) in front of a pronumeral (variable) in an algebraic term. Example

## Complementary Angles

Two angels that together measure 90° Example

## Chort

A line joining two points on a circle. Example

## Centimetre

(Symbol: cm) A unite of length 1 cm = 0.01 m 100 cm = 1 m Example

## Calliper

A measuring instrument similar to compasses with curved legs for measuring thickness (diameter) of curved (convex) objects or Example

## Capacity

How much a container can hold. The number of cubic units a container can hold is called the capacity or volume of the container. Volume… Read More »Capacity

## Calendar

A calendar represents the way in which a year is broken up into months, weeks and days. Example