Powers and roots

Squaringsquaring a number is that number times by itself 9 squared 9 x 9 = 81 9 squared is 81 Square rootsthe square root of a number is the number that when times by itself equals the original number the square root of 81 9 x 9 = 81 the square root of 81 is 9

Estimating powers and rootswhen estimating roots youmust split the equation up and simplify it estimate the square root of 820000 square root of 82 x 10000 square root of 82 x square root of 10000 roughly equals 9.1 x 100 = 910 when estimating powers estimate 8.2 to the power of 4 8 x 8 x 8 x 8 64 x 64 60 x 70 = 4200