1 is the square root of 1 1 x 1 = 1
2 is the square root of 4 2 x 2 = 4
3 is the square root of 9 3 x 3 = 9

4 is the square root of 16 4 x 4 = 16
5 is the square root of 25 5 x 5 = 25
6 is the square root of 36 6 x 6 = 36
7 is the square root of 49 7 x 7 = 49
8 is the square root of 64 8 x 8 = 64
9 is the square root of 81 9 x 9 = 81

10 is the square root of 100 10 x 10 = 100

11 is the square root of 121 11 x 11 = 121
12 is the square root of 144 12 x 12 = 144
13 is the square root of 169 13 x 13 = 169
14 is the square root of 196 14 x 14 = 196
15 is the square root of 225 15 x 15 = 225

and so on

What is the idea of a square root
of a number expressed in words?

The square root of a number
is that number which when multiplied by itself
gives us the original number

The square root of a number
is that number which when squared
gives us the original number

Created and Edited by Dr David Cornelius an Independent Private Maths Tutor with over 25 years of experience and The Secretary of The Association of Tutors in the UK for 15 years