For this case we have the following numbers:
3.1 × 10-2
2.01 × 10-3
4.2 × 10-5
1.03 × 10-1
2.32 × 10-4
To order the numbers, we must look at the exponent. The greater the exponent, the greater the number.
We have then that the order of greatest to least is:
1.03 × 10-1
3.1 × 10-2
2.01 × 10-3
2.32 × 10-4
4.2 × 10-5
