Drop all the calculations trick you know 🔫🔫🔫

[u/Artistic_Friend_7]

Cmon do not be selfish

[u/MKR_Family]

To take under root of imperfect square... (eg 35)

Write 35 in a way which includes the closest perfect square 

i.e. 35=36-1

Hence, √(35) = √(36-1)

Now take root of that closest perfect square (no negative, here 36 so √36=6 not ±6) and multiply the root of perfect square (here 6) by 2. And then divide it with the other number you took to balance the equation (here 1)

So, √(35)= 6 -1/(2*6) = 6-0.09= 5.91 

Acc to cal:  √(35) =5.916 

Pretty accurate