Commutative and Associative Properties

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) $(-2 \cdot 12) \cdot \frac{5}{6}= \text{________}$