Question

Estimate the Square root of 3844.

Answer 1

Unit digit of 3844 = 4

Therefore, Unit digit of square root $=2\text{or}8$

Discard 44, digit remaining is 38.

$6^2$ < 38 < $7^2$

$\text{So 3844 must be}{62}^2\text{or}{68}^2$

$\text{As we know that}{65}^2=4225\text{so,}$

$\sqrt{3844}=62.$