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MATH LESSON: Adding and Subtracting Integers

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Uploaded by on Feb 15, 2008

http://www.timbedley.com A cool little trick that will make your life complete. 20-year veteran elementary school teacher Tim Bedley shows how adding and subtracting positive and negative numbers can be a painless experience.
For more teaching ideas and educational videos please visit http://www.timbedley.com

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Uploader Comments (tbed63)

  • Hi Tim,I am frm Singapore. My daughter just started algebra and was realllly confused by the method used by her teacher. Your "dog" & "cat" worked wonders for her!! and she could grasp it within 5 mins. Within 15 mins, she finished all the 20 sums for homwork; and guess what? she got all of the sums correct! Thks a ton!! Will surely be watching more of your videos.

  • @sanrimful Oh man did you ever make my day. Thanks for taking the time to share such a kind comment. Blessings to you.

  • Okay so if i hv -5 + 5 ( 5 cats nd 5 dogs) wouldnt 5 dogs chase away 5 cats nd we'd b left with 0 ? but the answer is -10 ..? please help i hv a test soon nd i got confused on my hmwk when my teacher checked it .. so im guessin the cats nd dog rule doesnt apply here? ur vids really help thanks a million ! :)

  • @JessicaB97 -5+5=0 That is the correct answer, not -10. Not sure who told you that answer, but it's wrong. The dog cat thing works with that problem. I hope that helps you my friend ; )

Top Comments

  • Thanks dude!!!!!!!!!!!!!!!

    my teacher explained it in a REAAAALLLLLLYYYYYY complicated way.your way totally helped me understand integers!!!!!!!!!!!the whole video was very helpful and made me stop worrying that i was gunna fail my test on this!!!!!!!!!!

    thanks a billion!!!!!!!!!!!!!!!!!!

  • THNX BRO THIS HELPED WITH MY STUDYING :) ILL ACE THIS TEST CUZ OF U!

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All Comments (152)

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  • @tbed63 Do you have a tutorial on multiplication and division of integers? that will be next in syllabus. Tks

  • @tbed63 Hey Tim, it's no problem at all. In fact, I should be the one thanking you as my girl grasped it in a jiffy! In Spore, maths is generally of a high standard. In tests and exams questions are not straighforward. Eg of a basic question: a frog lives 10m below a well. It leaps up 6m and then leaps down 4m. What is the total distance leaped? Students will then have to form the equation: -10 +6 + (-4). Of course, this is just a basic one there are more complicated ones.

  • best teacher ever

  • Tvt tvt hyh g buy g

  • Six Justice!!!!

  • thank you so much :D, I have my midterm tom and never did integers in elementary O.o

  • نحن هاذا ناخذه صف تاسع وحليلنا خخخخخ good im meme in uae

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