The first non zero digits of a number

A number that divides exactly into another number

A value in the number’s time table

Indices show how many times a number or letter has been multiplied by itself.

A way of writing very large and very small numbers using a power of 10

A surd is an expression that includes a square root and the value is an irrational number

The top number of a fraction

The bottom number of a fraction

Fractions that are equal in size but are written differently

A fraction in its simplest terms cannot be cancelled down

Out of one hundred

Percentages are fractions with a denominator of 100

A straight line graph

The measure of the steepness of a curve.

The point where the line crosses the y axis

A graph that plots the distance traveled by an object on a vertical axis against the time taken

Involves an x2 and will be the shape of a parabola

Involves an x3 (cubic) and 1/x (reciprocal)

A change in the position, size or shape of a figure

Measuring the angle from one postion to another. Written as a 3 digit number, measured from the north line, in a clockwise direction.

A drawing that shows a real object with accurate sizes in proportion to the reduced or enlarged by a certain amount (called the scale)

Turning a shape around a fixed point.

This changes the size of the shape – it can make it smaller.

A drawing which has been reduced or enlarged from its original size, to a specified scale

The likelihood or chance of a given event happening. Often expressed as a fraction, decimal or percentage.

A calculation obtained from an experiment.

A diagram that represents sets and shows where those sets intersect.

A tree diagram is used to determine and visualise all the outcomes and probabilities of 2 or more events

A and B are mutually exclusive events if they cannot occur at the same time. This means that A and B do not share any outcomes

Two events are independent if the occurrence of one event does not affect the chances of the occurrence of the other event.

Congruent shapes are shapes that are exactly the same. The corresponding sides are the same and the corresponding angles are the same.

Two shapes are said to be similar if they are exactly the same shape, but are different in size. All sides are in the same proportion defined by the scale factor.

If 2 shapes are similar and the scale factor of the lengths is x, then the scale factor of the area is x2 and the scale factor iof the volume is x3

This involves mulitplying each term inside the bracket by the number/letter outside the bracket or inside a second bracket

The opposite of multiplying out brackets, involves putting the expression into bracket(s)

An equation that expresses a mathematical relationship between two or more variables

A number in a sequence

The term to term rule is a constant number and the nth term rule just involves “n”

Generally a quadratic sequence where you need to find the 2nd difference and the nth term rule will involve “n2”

The longest side of a triangle. It is also the side opposite the right angle.

A theorem stating that in a right triangle the area of the square on the hypotenuse is equal to the sum of the areas of the squares drawn on the other two sides.

The side opposite (opposite) and next to (adjacent) the angle you are dealing with in a triangle (not the right angle)

The sine of an angle in a right triangle is defined as the ratio of the length of the side opposite the angle to that of the hypotenuse.

The cosine of an angle in a right triangle is defined as the ratio of the length of the side adjacent to the angle to that of the hypotenuse.

The tangent of an angle in a right triangle is defined as the ratio of the length of the side opposite the angle to that of the adjacent side.

The sum of the areas of all faces of a solid figure

A 3D shape that has the same cross sectional throughout the length of the shape.

The perimeter of a circle.

The radius is a straight line from the centre to the circumference. The diameter goes from one side of the circle to the other passing through the centre.

A symbol that stands for an unknown quantity

A mathematics statement that uses an equals sign to show that two expressions are equal.

A relationship between two expressions that are not equal, often written with the symbols >, >, <, and < 

An expression or equation that includes an x²

A set of two or more equations that contain two or more unknown quantities

A way of simplifying or solving a quadratic equation by adding an expression to both sides to make one part of the equation a perfect square.

The amount of interest earned each year is added onto the original capital and included in the following year’s calculation

The total amount of interest is added on at the end the term

The reduction in value of an asset over time.

Using a compound interest type formula to calculate the growth of a population or depeciation of an asset

A direct relationship between the increase or decrease of two variables.

The relationship between one variable is directly proportional to the reciprocal of another.

Area = 1/2abSinC