Algebra Vocabulary

Front 1

sum

Back 1

The result of adding two or more numbers.

Front 2

difference

Back 2

The result of subtracting one number from another. How much one number differs from another.

Front 3

product

Back 3

The answer when two or more numbers are multiplied together.

Front 4

quotient

Back 4

The answer after you divide one number by another.

Front 5

equation

Back 5

An equation says that two things are equal. It will have an equals sign "="

Front 6

inequality

Back 6

An inequality says that two values are not equal.

Front 7

balance

Back 7

When both sides have the same quantity or mass.

Front 8

inverse operation

Back 8

The operation that reverses the effect of another operation.

Front 9

variable

Back 9

A symbol for a number we don't know yet. It is usually a letter like x or y.

Front 10

coefficient

Back 10

A number used to multiply a variable.

Front 11

term

Back 11

In Algebra a term is either a single number or variable, or numbers and variables multiplied together.

Front 12

expression

Back 12

Numbers, symbols and operators (such as + and ×) grouped together that show the value of something.

Front 13

slope

Back 13

How steep a straight line is.

Front 14

mean

Back 14

The mean is the average of the numbers: a calculated "central" value of a set of numbers.

Front 15

median

Back 15

The middle number (in a sorted list of numbers).

Front 16

mode

Back 16

The number which appears most often in a set of numbers.

Front 17

range

Back 17

The difference between the lowest and highest values.

Front 18

integers

Back 18

A number with no fractional part.

Front 19

intercepts

Back 19

The x-intercept is the point where the curve crosses the x axis and the y-intercept is the point where the curve crosses the y axis.

Front 20

ordinal

Back 20

A number that tells the position of something in a list.

Front 21

natural numbers

Back 21

The whole numbers from 1 upwards: 1, 2, 3, and so on ...

Front 22

function

Back 22

A function is a special relationship where each input has a single output.

Front 23

relation

Back 23

set of ordered pairs

Front 24

domain

Back 24

All the values that go into a function

Front 25

range

Back 25

The set of all output values of a function

Front 26

dependent variable

Back 26

The "output" value of a function:

Front 27

independent variable

Back 27

An "input" value of a function:

Front 28

algorithm

Back 28

An Algorithm is a step-by-step solution.

It is like a cooking recipe for mathematics.

Example: one algorithm for adding two digit numbers is "add the units, add the tens and combine the answers"

Front 29

addend

Back 29

Any of the numbers that are added together

Front 30

attribute

Back 30

A property of an object or person etc.

Front 31

combinations

Back 31

A collection of things, in which the order does not matter

Front 32

proportion

Back 32

Proportion says that two ratios (or fractions) are equal

Front 33

whole numbers

Back 33

The numbers {0, 1, 2, 3, ...} etc.

Front 34

complementary angles

Back 34

Two Angles are Complementary when they add up to 90 degrees (a Right Angle).

Front 35

supplementary angles

Back 35

Two Angles are Supplementary when they add up to 180 degrees.

They don't have to be next to each other, just so long as the total is 180 degrees.

Front 36

Pythagorean theorem

Back 36

In a right angled triangle the square of the long side is equal to the sum of the squares of the other two sides.