GCSE Maths Revision Foundation - Number Flashcard

Front

What is a prime number?

Back

A prime number is a natural number greater than 1 that has no positive divisors other than 1 and itself.

Front

What is the next prime number after 17?

Back

19

Front

What does 'squared' mean in mathematics?

Back

To square a number means to multiply it by itself.

Front

What is 5 squared?

Back

25

Front

How do you solve the equation 2x + 5 = 15?

Back

Subtract 5 from both sides to get 2x = 10, then divide by 2 to find x = 5.

Front

What is the order of operations in mathematics?

Back

The order of operations is Parentheses, Exponents, Multiplication and Division (from left to right), Addition and Subtraction (from left to right), often abbreviated as PEMDAS.

Front

Simplify the expression: 3 + 4 x 2 - 5

Back

6

Front

What is the sum of the interior angles of a triangle?

Back

180 degrees.

Front

What is an equation?

Back

An equation is a mathematical statement that asserts the equality of two expressions.

Front

What is a variable in mathematics?

Back

A variable is a symbol used to represent an unknown value in mathematical expressions or equations.