Question

how to teach square number

Answer 1

Hi here is your answer
What are square numbers?

When you multiply a number by itself, the result is a square number:
1 x 1 = 1                           7 x 7 = 49
2 x 2 = 4                           8 x 8 = 64
3 x 3 = 9                           9 x 9 = 81
4 x 4 = 16                        10 x 10 = 100
5 x 5 = 25                        11 x 11 = 121
6 x 6 = 36                        12 x 12 = 144
and so on.
To write the mathematical formula for square numbers we add a small 2 next to and above the number, for example: 32.