Using square root table, find the square root

Question:

Using square root table, find the square root
198

Solution:

Using the table to find $\sqrt{2}$ and $\sqrt{11}$

$\sqrt{198}=\sqrt{2} \times \sqrt{9} \times \sqrt{11}$

$=1.414 \times 3 \times 3.317$

$=14.070$

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