Lesson 2-1

Lesson 2-1 "Properties of Numbers"
Part 1 "Identifying Properties"

1. Commutative Property: A + B = B + A
2. Associative Property: (A + B) + C = A + (B + C)
3. Additive Identity: A + 0 = A
4. Multiplicative Identity: A · 1 = A

Part 2 "Using Properties"

5. Examples: (81 + 6) + 9, 1.65 + .85 + .35, (4·9)·5

This page was last modified 09/14/07