Squaring digits
Select a natural number between 1 to 50. Square the digits and add. Repeat this process until you see a pattern.

Example:

The number is 23. Observe the pattern, 23:2²+3²= 4 + 9 = 13 ---> 1²+3² = 1+9 = 10 ---> 1² + 0 = 1

•What other numbers ends in 1?

•What happens if you do the process to number 37?

•What conclusion can you give?​