Commutative and Associative Properties

Read this section on the communitive and associative properties. Complete the practice questions and check your answers.

Examples and Exercises

EXAMPLE 7.6

Use the associative properties to rewrite the following:

(a) (3+0.6)+0.4= ________

(b) \left(-4 \cdot \frac{2}{5}\right) \cdot 15= ________


Try It 7.11

Use the associative properties to rewrite the following:

(a) (1+0.7)+0.3= \text{________}                                                  (b) (-9 \cdot 8) \cdot \frac{3}{4}= \text{________}


Try It 7.12

Use the associative properties to rewrite the following:

(a) (4+0.6)+0.4= \text{________}                                                  (b) (-2 \cdot 12) \cdot \frac{5}{6}= \text{________}