Question

What is 16,700,000,000,000,000 estimated as the product of a single digit and a power of 10?

Answer 1

16,700,000,000,000,000 = 1.67 x 10^16

start at the last 0....count the number of spaces till u can get a decimal right after the first digit....thats 16 spaces. Now take ur numbers that are not 0...1.67....and multiply it by 10^16...because of the 16 spaces. I hope I am making some kind of sense...I am better at doing then explaining how to do...lol

Answer 2

First, the number of zeros you have is the power of 10 and as a product, it would look like:
167*10^14.

But we need a number with a single digit which means we have to divide 167 by 100=10^2. In order to have the same equation, we need also to multiply by 10^2. Now it would look like:

1.67 * 10^14* 10^2 = 1.67* 10^16
Now 1.67 rounded up is 2. The final solution is:

2* 10^16