 # Algebra 2 Section 2: Properties of Real Numbers

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Algebra 2 Section 2: Properties of Real Numbers

Identity Properties What does the word identity mean?
Additive Identity Property: Multiplicative Identity Property:

Inverse Properties What does the word inverse mean? Additive Inverse:
Multiplicative Inverse:

Example 1: Find the additive and multiplicative inverse of each number.
A) B)

Closure Property Real + Real = _________ Real * Real = _________

Commutative Property

Associative Property

Distributive Property

Example 2: Identify the property demonstrated by each equation.
a) b)

Example 3: Use mental math to find a 15% tip on a bill of \$18.52.

Example 4: Use mental math to find 5% tax on a \$42.40 purchase.

Example 5: Classify each statement as sometimes, always, or never true
Example 5: Classify each statement as sometimes, always, or never true. Give examples of properties to support your answers. A) B) 3(a+1) = 3a + 3

Assignment #2 Page 17 #’s 15-31,(64)