How do you write 629.55 in scientific notation?

1 Answer
Nov 5, 2015

6.2955*10^2

Explanation:

Make sure you move your decimal to where your number will be between 1 and 10. Then if you moved your decimal to the left, your exponent for 10 will increase for each place you moved it; if you moved your decimal to the right, your exponent for 10 will decrease for each place you moved it.

629.55 must have it's decimal moved twice to the left in order for it to be in between 1 and 10.

6.2955*10^2 will be your answer. And if you want to round, you could just round it to 6.3*10^2.