Find the square roots of the following perfect squares using the long division method:

$4,80,249$

Find the square roots of the following perfect squares using the long division method:

$6,82,276$

Find the square roots of the following perfect squares using the long division method:

$64,21,156$

Find the square roots of the following perfect squares using the long division method:

$35,70,96,609$

Find the least number that must be subtracted from the following numbers to make them a perfect square:

$2,07,978$

Find the least number that must be subtracted from the following numbers to make them a perfect square:

$4,23,886$

Find the least number that must be subtracted from the following numbers to make them a perfect square:

$4,85,933$

Find the least number that must be subtracted from the following numbers to make them a perfect square:

$2,78,840$

Find the least number that must be added to the following numbers to make them a perfect square:

$5,687$