Find the square root of the following using long division method.

$998001$

Find the square root of the following using long division method.

$9409$

Find the square root of the following using long division method.

$11449$

Find the square root of the following using long division method.

$11881$

 Simplify: $\sqrt{196}+\sqrt{0.0064}-\sqrt{100}$

Simplify: $\sqrt{{20}^2-{16}^2}$

Simplify and enter the answer in the form of fraction:

 $\sqrt{\frac{0.0361}{576}}$

Simplify: $(-\sqrt{\frac{144}{576}})\times \left(-\frac{16}{\sqrt{64}}\right)$

Simplify: $\left[(-15{)}^2\times \sqrt{81}\right]+5^2$