Question

1) GUESS AND VERIFY THE SQUARE ROOT OF: i) 4900

Answer 1

70 because 70 × 70= 4900 so square root of 4900= 70

Answer 2

Hii Mate here is your Answer,

It is very easy to guess square root of 4900 as follows:

4900 = 49 ×100 = 7^2 × 10^2

So answer is 7 × 10 = 70.
Actually it is + or - 70

Hope this helps you a lot....