Question

0.0000821 in scientific notation pls pls psl

Answer 1

\[8.21*10^{-5}\]

Answer 2

Just go right in front of the first number that isn't zero, put a decimal in the new spot, and count how many spots you had to move over to go back to the original decimal. If you have to move to the left 5 spots, then put a -5 above the 10. If you move 3 spots to the right, put a positive 3 above the 10.