Calculate the square root of $$a=783,623$$.
See development and solution
Development:
Since the number of fractional digits is odd, a zero is added at the end, and the root of the number is calculated: $$7 83 62 30$$.
The result is $$\sqrt{7836230}=2799,33$$.
The comma is moved two positions to the left, since there are two pairs of decimals, counting the added zero.
And so, $$\sqrt{a}=27,99$$
Solution:
$$\sqrt{a}=27,99$$