1. EXAMPLE 2 Writing Reciprocals The table lists the mean lengths of five species of finches. Order the finch species from shortest to longest. Biology

2. EXAMPLE 2 SOLUTION Write all of the lengths as decimals. The ones digits are all the same, so order according to the tenths digits. 5 5 8 = 5.6255.55.5 5 7 16 5.4375 = 5.25 5 3 4 = 5.755.75 ANSWER From shortest to longest the species are Painted Bunting, Lazuli Bunting, Indigo Bunting, House Finch, and Purple Finch.

3. EXAMPLE 2 Graph the finches’ lengths on a number line. These lengths, from left to right, correspond to the answer. Check

4. GUIDED PRACTICE for Example 2 Order the numbers from least to greatest. 3. 0.51, 3 5 11, 20 2, 3, 0.62 ANSWERFrom least to greatest 0.51 11 20 3 5,, 0.62, 3 2

5. GUIDED PRACTICE for Example 2 Order the numbers from least to greatest. 4. – 1 1 8 3 7,, 1.1 –, 1.43, –1 4 15 1 8 – 1 4, 15 –1 3 7 – 1.43, –1, – 1.1, ANSWERFrom least to greatest