square,odd,even,prime number & X2

Square

Square is a number multiplied by itself

It is represented by a 2 at the top right corner of a number.

It is also used to represent 2-dimensional by writing a 2 at the top right corner of a measurement.

Odd numbers

An odd number is a number that can’t be divided by 2
E.g. 1,3,5,7,9

Even numbers

An even number is a number that can be divided by 2
E.g. 2,4,6,8,10

Prime numbers

A prime number is a number that can only be divided by 1 and itself
E.g. 2,3,5,7,11,13

Square number

A square number is a number that can be rooted into a whole number
E.g. 1,4,9,16,25,36,49