1 / 11

Multiplying and Dividing Integers

Multiplying and Dividing Integers. Multiplying and Dividing Integers. Negative x Negative = Positive Positive x Positive = Positive Negative x Positive = Negative Positive x Negative = Negative When multiplying two numbers, if the signs are the same the answers positive.

isabelle-whitfield
Download Presentation

Multiplying and Dividing Integers

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. Multiplying and Dividing Integers

  2. Multiplying and Dividing Integers • Negative x Negative = Positive • Positive x Positive = Positive • Negative x Positive = Negative • Positive x Negative = Negative • When multiplying two numbers, if the signs are the same the answers positive. • If the signs are different, the answer is negative.

  3. Here’s a way I can Remember! • To remember whether your answer will be positive or negative when MULTIPLYING or DIVIDING, we’ll use:

  4. When multiplying Integers, cover the Two signs you are using Choral Response What sign is left uncovered? Ex.: 5 (-3) Negative, - That is the sign of The answer = -15

  5. You Try! (– 10)(3) = – 30 2  – 5 = – 10 – 11  – 6 = 66

  6. Division It’s not any different! Good News: Ex.: -48  (-4) = + 12

  7. Reminder: Equal means it works both ways! 

  8. You try… • (14)  (-2) Answer: -7

  9. You Try: = 12 (-36)  (- 3) = 210 5  (-7)  (-6) = 0

  10. Evaluating Variable Expressions • Evaluate 6a when a = – 3 • 6a = 6 (– 3) • Answer = -18 • Evaluate xyz when x = 2, y = – 4 and z = 6 • xyz = 2(– 4)(6) • Answer = – 48

  11. Practice: Multiplying and Dividing Integers

More Related