Download presentation

Presentation is loading. Please wait.

Published byAmber Abigail Carroll Modified over 4 years ago

1
Warm Up 1. To which subgroups of the real numbers does each of the following belong? a. 8 b. -6 c. 2.658694368946587610568….. 2. Use an inequality to compare the two numbers. a. 1.265 and 5/4 b. 4.2 and

2
PROPERTIES OF REAL NUMBERS Section 1.4

3
Objective TSWBAT: Identify properties of real numbers. Simplify expressions.

4
Commutative Property Order does not matter Addition a + b = b + a Multiplication

5
Associative Property Changing the grouping does not matter. Addition (a + b) + c = a + (b + c) Multiplication

6
Identity The operation that keeps the first number equal to the answer. Addition a + 0 = a Multiplication

7
Zero Property of Multiplication Anything times 0 equals 0.

8
Multiplication Property of -1 If you multiply by -1 the sign will change.

9
Example 1 Which property is illustrated by each statement? A. Answer: Zero Property of Multiplication B. Answer: Associative Property of Addition C. Answer: Identity Property of Addition

10
Example 2 A movie ticket costs $6.75. A drink costs $1.90. Popcorn costs $2.25. What is the total cost for a ticket, a drink, and popcorn? Use mental math. Answer: $10.90

11
Assignment Pg. 29-31 # 7-18, 47-55 odd

Similar presentations

© 2020 SlidePlayer.com Inc.

All rights reserved.

To make this website work, we log user data and share it with processors. To use this website, you must agree to our Privacy Policy, including cookie policy.

Ads by Google