| Algebra 1 Notes
Chapter One
Section1.1
Section1.2
Section 1.3
Section 1.4
Section 1.5
Section 1.6
Section 1.7
Section 1.8
Section 1.9
Section 1.10
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Section 1.2 The Commutative and Identity Properties
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Commutative Properties |
| Addition |
| For any numbers a and b, a + b = b +
a .
(We can change the order when adding without
affecting the sum.) |
| Multiplication |
| For any numbers a and b, a b = b a .
(We can change the order when multiplying
without affecting the product.) |
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Identity Properties |
| Addition |
| For any number a, a + 0 = a and 0 +
a = 0
(Adding a 0 to any number gives that number.) |
| Multiplication |
| For any number a, 1* a = a and a * 1
= a.
( Multiplying a number by 1 gives that number) |
Take class notes.
Rework the examples that are illustrated in
this section and the examples that I demonstrated in class.
Do your homework
Write down questions (examples or concept that you do not
understand).......then.............. Ask these questions in class.
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