Question

If the square root of a number ends in 6 or 4, the given number should have ________ in its units place? With steps.

Answer 1

There is no need of steps.


write the squares of number from 1to 9

1^2 =1
2^2=4
3^2=9
4^2=16
​​​​​​5^2=25
6^2=36
7^2=49
8^2=64
9^2=81

here we can see that squares of 4&6 end with 6

and

squares of 8&2 end with 4

the same is applicable for any higher numbers.