answer: -1.3, 1.1, 2.1, 2.3
Explanation:
When ordering these numbers from least to greatest it is important to start by looking for negatives first. As -1.3 has a negative sign it is the smallest number. Next we should look at the ones place. Since 2 is bigger than 1 the next number would be 1.1.
After we should look at the tenths place since 2.1 is smaller than 2.3 is would go