Ms. Perez’s biology class continued to grow sunflowers. During the second week, the average sunflower grew 2.2 inches. The table shows the difference from the average for four students. A 2-column table with 4 rows. Column 1 is labeled Student with entries Raj, Clara, Jacob, Mia. Column 2 is labeled Difference (inches) with entries negative 0.2, four-fifths, 1.3, negative 1 and one-half

Order the values of the differences from least to greatest.

First, write the fractions as decimals.
StartFraction 4 Over 5 EndFraction is
and Negative 1 and one-half is
.
Next, plot the numbers on the number line.

The greatest number is
.
Using the students’ names, the correct order is
.