EXAMPLE 3 Classify numbers Tell whether each of

EXAMPLE 3 Classify numbers Tell whether each of the following numbers is a real number, a rational number, an irrational number, an integer, or a whole number: 24 , 100 , – 81. Real Number? Rational Number? 24 Yes No No 100 Yes No Yes – 81 Yes No Number Irrational Whole Number? Integer? Number?

EXAMPLE 4 Graph and order real numbers 4 Order the numbers from least to greatest: , – 5 , 13 , 3 – 2. 5 , 9. SOLUTION Begin by graphing the numbers on a number line. ANSWER Read the numbers from left to right: – 2. 5, – 5 , 4 , 9 , 13. 3

EXAMPLE 4 fororder Examples 3 and 4 Graph and real numbers GUIDED PRACTICE 9. Tell whether each of the following numbers is a real number, a rational number, an irrational number, an integer, or a whole number: – 9 , 5. 2, 0, 7 , 4. 1, – 20 2 Then order the numbers from least to greatest. ANSWER 9 – – , 20 , 0, 7 , 4. 1 , 5. 2. 2

EXAMPLE 4 fororder Examples 3 and 4 Graph and real numbers GUIDED PRACTICE Real Number? Rational Number? Irrational Number? Integer? Whole Number? – 20 Yes No No 9 – 2 Yes No No No 0 Yes No Yes 7 Yes No No 4. 1 Yes No No No 5. 2 Yes No No No Number