Answer:
3.3*10^5 is the largest one.
Explanation:
Comment
The threes out in front are the same. The next digit, (the tenths) are 3 and 1 since 3 is greater than 1, the answer is
3.3*10^5 > 3.1*10^5
Think of it this way. Take away the 10^5 and just look at 3.1 and 3.3. Which is bigger. 3.3 is the larger one.