Question #3e9c7

1 Answer
Oct 23, 2017

16

Explanation:

If you didn't have a calculator, you could break it up into a product of squares:

sqrt(256)=sqrt(64*4)=sqrt(64)*sqrt(4)

Remember taking the square root means you are thinking of a number that multiplies by itself to get the number inside, so:

sqrt(64)*sqrt(4)=8*2=16