To order the numbers 2.09, 2.9, and 2.099 from least to greatest, we can compare them directly:
- 2.09 (which is the same as 2.090 when considering the same decimal places for comparison)
- 2.099
- 2.9 (which is the same as 2.900 when considering the same decimal places for comparison)
So, in order from least to greatest, the numbers are:
- 2.09 (smallest number)
- 2.099 (middle number)
- 2.9 (largest number)