# GCSE Maths Flashcards

Browse 500 sets of GCSE Maths flashcards

Lowest Common Multiple

Prime Factors

Highest Common Factor

BIDMAS

The Lowest number in the two numbers time tables. ie, 18 and 2…

Prime numbers that multiply to achieve a chosen number. ie, 11…

The highest factor of two numbers. ie, 28 and 16, they both ha…

Brackets, Indices, Division, Multiplication, Addition, Subtrac…

Lowest Common Multiple

The Lowest number in the two numbers time tables. ie, 18 and 2…

Prime Factors

Prime numbers that multiply to achieve a chosen number. ie, 11…

Lowest Common Multiple

Prime Factors

Highest Common Factor

BIDMAS

The Lowest number in the two numbers time tables. ie, 18 and 2…

Prime numbers that multiply to achieve a chosen number. ie, 11…

The highest factor of two numbers. ie, 28 and 16, they both ha…

Brackets, Indices, Division, Multiplication, Addition, Subtrac…

Lowest Common Multiple

The Lowest number in the two numbers time tables. ie, 18 and 2…

Prime Factors

Prime numbers that multiply to achieve a chosen number. ie, 11…

Finding the LCM of two numbers when you…

Finding the HCF of two numbers when you…

Multiplying fractions

Dividing fractions

- List all the prime factors out... - If a factor appears more th…

- List all the prime factors that appear in both numbers... - Mul…

Multiply the top and bottom separately

Turn the second fraction upside down then multiply

Finding the LCM of two numbers when you…

- List all the prime factors out... - If a factor appears more th…

Finding the HCF of two numbers when you…

- List all the prime factors that appear in both numbers... - Mul…

Angles in a Semi Circle

Angles at the Centre and Circumference

Angles in the Same Segment

Angles in a Cyclic Quadrilateral

The angle not in contact with the diameter is always 90'.

The centre angle is always double the angle above.

Opposite angles stay the same and are equal

Opposite angles always add up to 180', therefore 360' in total.

Angles in a Semi Circle

The angle not in contact with the diameter is always 90'.

Angles at the Centre and Circumference

The centre angle is always double the angle above.

Circle Theorem 1

Circle Theorem 2

Circle Theorem 3

Circle Theorem 4

Angle at centre is twice angle at circumference.

Angle at circumference of a semicircle is a right angle (90°).

Angles in same segment are equal.

Opposite angles in a cyclic quadrilateral is 180°.

Circle Theorem 1

Angle at centre is twice angle at circumference.

Circle Theorem 2

Angle at circumference of a semicircle is a right angle (90°).

Factors

Multiples

Prime Numbers

Triangle types: Equilateral

Numbers that fit into another number exactly

The times table for that number

2,3,5,7,11 a number with only 2 factors: 1 and itself

Equilateral: all sides the same length, all angles equal 60 de…

Factors

Numbers that fit into another number exactly

Multiples

The times table for that number

Whole number

Only has 2 factors, 1 and itself. 2,3,5…

6, 12, 18, 24, 30....

2x2x3 = 2² x 3

What is an integer

What is a

**prime**number ?What are the multiples of 6

What are the

**prime factors**of 12 ?Whole number

What is an integer

Only has 2 factors, 1 and itself. 2,3,5…

What is a

**prime**number ?Whole number

Only has 2 factors, 1 and itself. 2,3,5…

6, 12, 18, 24, 30....

2x2x3 = 2² x 3

What is an integer

What is a

**prime**number ?What are the multiples of 6

What are the

**prime factors**of 12 ?Whole number

What is an integer

Only has 2 factors, 1 and itself. 2,3,5…

What is a

**prime**number ?Use a prime factor tree.

1. Write as a product of primes.... 2. Use…

1. Write as a product of primes.... 2. Use…

Multiply the number by itself and by it…

How do you write a number as a product of primes? e.g. 20

How do you find the LCM of two numbers? e.g. LCM of 20 and 70

How do you find the HCF of two numbers?... e.g. HCF of 20 and 70

How do you cube a number? e.g. 5³

Use a prime factor tree.

How do you write a number as a product of primes? e.g. 20

1. Write as a product of primes.... 2. Use…

How do you find the LCM of two numbers? e.g. LCM of 20 and 70

Factors

Multiples

Prime Numbers

Triangle types: Equilateral

Numbers that fit into another number exactly

The times table for that number

2,3,5,7,11 a number with only 2 factors: 1 and itself

Equilateral: all sides the same length, all angles equal 60 de…

Factors

Numbers that fit into another number exactly

Multiples

The times table for that number

Whole number

Only has 2 factors, 1 and itself. 2,3,5…

6, 12, 18, 24, 30....

2x2x3 = 2² x 3

What is an integer

What is a

**prime**number ?What are the multiples of 6

What are the

**prime factors**of 12 ?... Use a factor treeWhole number

What is an integer

Only has 2 factors, 1 and itself. 2,3,5…

What is a

**prime**number ?Whole number

Has exactly 2 factors, 1 and itself. 2,…

6, 12, 18, 24, 30....

2x2x3 = 2² x 3

What is an integer

What is a

**prime**number ?What are the multiples of 6

What are the prime factors of 12 ?

Whole number

What is an integer

Has exactly 2 factors, 1 and itself. 2,…

What is a

**prime**number ?What are the multiples of 20?

What are the factors of 20?

How do you find 50% of a number?

How do you find 25% of a number?

20, 40, 60, 80, 100, 120 ...

1, 2, 4, 5, 10, 20

÷ 2

÷ 4 (or half it and half again)

What are the multiples of 20?

20, 40, 60, 80, 100, 120 ...

What are the factors of 20?

1, 2, 4, 5, 10, 20

What is the power of 0?

What is a cube root?

What is a cube number?

How do you divide fractions?

The power of 0 is always 1.

Produces a given number when cubed e.g. 3x3x3, cube root of 27…

A number multiplied by itself 3 times e.g. 3x3x3

Divide fractions by flipping upside down the 2nd fraction and…

What is the power of 0?

The power of 0 is always 1.

What is a cube root?

Produces a given number when cubed e.g. 3x3x3, cube root of 27…

Factors

Multiples

Prime Numbers

Triangle types: Equilateral

Numbers that fit into another number exactly

The times table for that number

2,3,5,7,11 a number with only 2 factors: 1 and itself

Equilateral: all sides the same length, all angles equal 60 de…

Factors

Numbers that fit into another number exactly

Multiples

The times table for that number