Chapter 2
Recognizing Algebraic Properties and Notation
The properties used in mathematics were established hundreds of years ago. Mathematicians around the world wanted to be able to communicate with one another; more specifically, they wanted to get the same answers when working on the same questions. To help with that, they developed and adopted rules such as the commutative property of addition and multiplication, the associative property of addition and multiplication, and the distributive property.
The Problems You'll Work On
To strengthen your skills with algebraic properties and notation, you'll practice doing the following in this chapter:
What to Watch Out For
Here are a few things to keep in mind while you work in this chapter:
Applying Traditional Grouping Symbols
51–58 Simplify the expressions.
51. 6 − (5 − 3) =
52. (4 − 3) − 5 =
53. 5[6 + (3 − 5)] =
54. 8{3−[4 + (5 − 6)]} =
55.
56.
57.
58.
Introducing Some ...
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