1 / 10

Chapter 1

Chapter 1. 1-5 Properties of Numbers. Commutative: a + b = b + a Associative: (a + b) + c = a + (b + c) Identity Property of Zero: a + 0 = a. Addition Properties. Commutative: a * b = b * a Associative: (a * b) * c = a (b * c) Identity Property of 1: a * 1 = a.

blake-garcia
Download Presentation

Chapter 1

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Chapter 1 1-5 Properties of Numbers

  2. Commutative: a + b = b + a • Associative: (a + b) + c = a + (b + c) • Identity Property of Zero: a + 0 = a Addition Properties

  3. Commutative: a * b = b * a • Associative: (a * b) * c = a (b * c) • Identity Property of 1: a * 1 = a Multiplication Properties

  4. http://my.hrw.com/math06_07/nsmedia/lesson_videos/msm2/player.html?contentSrc=6100/6100.xmlhttp://my.hrw.com/math06_07/nsmedia/lesson_videos/msm2/player.html?contentSrc=6100/6100.xml Let’s Practice!

  5. Tell which property is represented. • 1 + (6 + 7) = (1 + 6) + 7 • 1 x 10 = 10 • 3 x 5 = 5 x 3 • 6 + 0 = 6 • 4 x (4 x 2) = (4 x 4) x 2 • x + y = y + x Examples

  6. http://my.hrw.com/math06_07/nsmedia/lesson_videos/msm2/player.html?contentSrc=6674/6674.xmlhttp://my.hrw.com/math06_07/nsmedia/lesson_videos/msm2/player.html?contentSrc=6674/6674.xml Video 2

  7. Simplify each expression. Justify each step. • 8 + 23 + 2 • 2 x (17 x 5) • (25 x 11) x 4 • 17 + 29 + 3 • 16 + (17 + 14) • 5 x 19 x 20 Examples

  8. http://my.hrw.com/math06_07/nsmedia/lesson_videos/msm2/player.html?contentSrc=6675/6675.xmlhttp://my.hrw.com/math06_07/nsmedia/lesson_videos/msm2/player.html?contentSrc=6675/6675.xml Video 3

  9. Use the Distributive Property to find each product. • 2(19) • 5(31) • (22)2 • (13)6 • 8(26) • (34)6 Examples

  10. To find the area of a loft, the architect multiplies the length and the width: (14 + 8) x 10. Use the Distributive Property to find the area of the loft. • A student simplified the expression 6 x (9 + 12) as shown. What is the student’s error. 6 x (9 + 12) = 6 x 9 + 12 = 54 + 12 = 66 Word Problems

More Related