To order the decimals from least to greatest, let's first list them clearly:
- 1.99
- 1.9
- 1.09
Now, let's compare them:
- 1.09 is the smallest.
- 1.9 is next.
- 1.99 is the largest.
So, in order from least to greatest, the decimals are:
1.09, 1.9, 1.99
If we look at the other provided decimal sets, the correct ordering would be:
1.09, 1.9, 1.99