Question

What are the last digits in the square of 39

Answer 1

Answer:

1

Step-by-step explanation:

$39^{2}=1521$

The last digit of the square of 39 is 1

Answer 2

Step-by-step explanation:

39 ⇢ Unit digit ⇢ 9, square of 9 = 81, Therefore, the unit digit of the square of 39 is 1. 297 ⇢ Unit digit ⇢ 7, square of 7= 49, Therefore, the unit digit of the square of 297 is 9. 5125 ⇢ Unit digit ⇢ 5, square of 5= 25, Therefore, the unit digit of the square of 5125 is 5.