Monthly Archives: September 2014

ESTIMATING SQUARE ROOT!!!

When estimating the square root of a number you first find the two perfect square roots that surround the number you are trying to find the square root of. For example, if I wanted to find the square root of 60 the perfect square roots that surround it would be 49 and 64. Then you would find the numbers that make the perfect square root. 49 would be 7 and 64 would be 8. Then you would add 7.5 to 49 so you can eliminate possibilities. 49+7.5=56.5 and 60 is a little more than 56.5. So, you can now eliminate 7.1, 7.2, 7.3, 7.4, and 7.5. I would estimate that the square root of 60 is 7.7.