# Math Help - Significant Figures

1. ## Significant Figures

I had this problem come up while studying for my Math Praxis II exam.

What can the difference between the following numbers that are rounded to 2 significant digits:

2.87 million
2.22 million

Thanks,
karies4083

2. ## Re: Significant Figures

Hint: The first number belong to the interval $[2.865\cdot10^6,2.875\cdot10^6)$ and the second number belongs to the interval $[2.215\cdot10^6,2.225\cdot10^6)$.

3. ## Re: Significant Figures

Thanks .. that helps . .ALOT!

karies4083