A square number is the result of multiplying a number by itself. This can also be called a 'number squared'. The symbol for ‘squared’ is ². For example, you would write 3 squared like this: 3² ...

Square numbers A square number is a number multiplied by itself. This can also be called 'a number squared'. The symbol for squared is ². 2² = 2 x 2 = 4 3² = 3 x 3 = 9 4² = 4 x 4 = 16 5² = 5 ...