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Example 7.7 from Prealgebra, 7.2 Commutative and Associative Properties
Use the Associative Property of Multiplication to simplify:
Work it out on paper first. Then open the solution one step at a time, and stop as soon as you can finish on your own.
| Change the grouping. | |
| Multiply in the parentheses. |
Notice that we can multiply but we could not multiply without having a value for
The book's Try It right after this example: same idea, new numbers. Only the answer is given.
Use the Associative Property of Multiplication to simplify the given expression:
How did it go?