Find the square of the following number by visual method:

$702$

Find the square of the following number by visual method:

$99$

Write the possible unit's digit of the square root of the following number. Is the number is odd square root$?$

$9801$

Write the possible unit's digits of the square root of $99856$ and check whether the number is odd square root?

Write the possible unit's digits of the square root of $998001$ and check whether the number is odd square root?

Write the possible unit's digits of the square root of $657666025$ the following numbers. Which of these numbers are odd square roots$?$

Find the square root of each of the following by prime factorization.

$441$

Find the square root of the following number by prime factorisation.

$196$

Find the square root of $529$.