What is an integer

A whole number

What are rational numbers

They are either integers, fractions or terminating or recurring decimals

What is an irrational number

They are never ending, non repeating decimals

What is BODMAS

B-Brackets O-Other things D-Divison M-Multiplication A-Addition S-Subtraction

What are Multiples

The Factors of a number are all the numbers that divide into it

What is a prime number

A prime number is a number which doesn’t divide by anything, apart from itself and 1 ( however 1 is not a prime number)

How to find prime factors

Using a factor tree

What is LCM and how to find it

It is the smallest number that will divide by all numbers in question.

First list all the prime factors that appear in both numbers. If a factor appears more than once in one of the numbers list it the same amount of times and multiply together to give the LCM

What is the HCF and how to find it

It is the Biggest number that will divide by all numbers in question.

First list all the prime factors that appear in both numbers. Multiply together to find the HCF.

Fractions- what is cancelling down

Simplifying a fraction

Fractions- what are mixed numbers

Mixed numbers are numbers with an integer and a fraction part

Fractions- How to multiply fractions

Multiply top and bottom separately

Fractions- How to divide fractions

Turn the 2nd fraction upside down and then multiply

Fractions- How to get a common denominator

Find the lowest common multiple of the denominators

Fractions- How to add or subtract fractions

First make sure the denominators are the same then add/subtract the numerator only. Convert to improper fractions first

How to get a fraction to a decimal to a percentage

From a fraction divide to get a decimal and times by 100 to get a percentage

How to get a percentage to a decimal to a fraction

From a percentage divide by 100 to get a decimal then either use the X method for recurring decimals or for terminating decimals its easy