How do you order the following from least to greatest without a calculator #8.1 times 10^3, 2.1times10^5, 7.25times10^3, 1.05times10^4, 1.75times10^4#?
Use the power of 10 first, and then the coefficient
If we have powers of 10 as the ones given, the first observation is that:
The second observation is that if we have the same power
Now let's put them in order: