Glossary
 Binary Operators
The Binary Operators are +, , x , and
 Commutative
An operation is commutative if the order does not matter. Addition and
multiplication are commutative, subtraction and division are not.
 Factor
A factor of a number is a number that divides that number exactly.
 Integers (with the 'g' pronounced like a 'j') includes the whole numbers, but extends
the range to include negative numbers as well, i.e
.... 3, 2, 1, 0, 1, 2, 3, .........

Isosceles Triangle has two equal sides, and therfore two equal angles.
 Linear Equations
 Prime Numbers
are numbers with no factors other than 1 and the
number itself.
 Rational Numbers
are numbers that can be represented as a fraction. Integers
come under this classification because, for example
\[ 12 = \frac{12}{1} \]  Reciprocal
The Reciprocal of a number is given by
\[ \mbox{reciprocal} = \frac{1}{\mbox{number}} \] For example :
The reciprocal of 3 is $\frac{1}{3}$ The reciprocal of 0.362 = $\frac{1}{0.362}$ = 2.762