Question

Scientific Notation

Answer 1

How do you change 2.1x10^-8 to
2.1x10^-6?

Answer 2

That makes the overall number greater, correct?

Answer 3

Remember these two rules:

\[10^{-1}=\frac{ 1 }{ 10 }\]
and

\[10^2=10*10\]

Answer 4

So I need to to move the decimal either to the left or right 2 places?

Answer 5

ohhhh, I got it. It is 0.021!