Question

Determine the square root of 1444.

Answer 1

1444 lies between 900 and 1600
So it’s square root lies between 30 and 40

• Since the last digit of 1444 is 4, last digit of it’s square root is 2 or 8. So the square root can be 32 or 38
  But 1444 is closer to 1600 more that 900. So 38 is it’s square root.