Question

ch-6 Square
Roots Esc-6.1.
what will be the unit digit of
the squares of
the 91​

Answer 1

Answer: The unit digit of a perfect square can be only 0, 1, 4, 5, 6 or 9. The square of a number having 1 or 9 at the units place ends in 1 ,2 or 8 at the units place ends in 4, 3 or 7 at the units place ends in 9.

Step-by-step explanation: