Question

Find the square root of 38 without actual multiplication

Answer 1

We know that,

30 = 30 + 8

Now,

38 ^2 =38×38

=(30+8)(30+8)

=30(30+8)+8(30+8)

=30×30+(30×8)+(30×8)+8×8

=900+240+240+64

=1444

Hope this helps you...