1 / 10

Multiplying and Dividing Integers

Multiplying and Dividing Integers. At this stage, multiplying and dividing numbers is an easy task. When we introduce positive and negative signs, a series of rules are needed. This is where we begin today. 8 X 9 =. 72. 15 5 =. 3. Positive Positive. (+21). (+7) X (+3) =.

alan-frederick
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. At this stage, multiplying and dividing numbers is an easy task. When we introduce positive and negative signs, a series of rules are needed. This is where we begin today 8 X 9 = 72 15 5 = 3

  3. Positive Positive (+21) (+7) X (+3) = (+3) X (+8) = (+24) With all positives, we can drop the brackets and signs 7 X 2 = 14

  4. Positive Negative Suppose you borrow $4.00 off of three different people. How much are you in debt? (+3) X (-4) = Total debt: 12 dollars (-12) 3 people Debt of four dollars

  5. (-12) (-5) X (+8) = (-40) (+3) X (-4) = Multiplying 2 integers with different signs gives a negative number.

  6. Negative Negative “two negatives make a positive” WHY? (-3) X (-5) = (+15) (-2) X (-5) = (+10) WHY?……….

  7. Consider spending money… Suppose you spend $10.00 a week on junk food…. How much money have you spent since 3 weeks ago? You have spent 30 dollars (Spend $10.00) X (3 weeks ago) = (+30) (-10) X (-3) =

  8. Try these: (-7) X (-4) = (+28) (+16) (-2) X (-8) =

  9. The rules for multiplication apply to the process of division as well…

  10. See Sheet

More Related