Strategies for Addition and Subtraction Facts - Video from Math Mammoth

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Uploaded by on Sep 15, 2009

I go through several strategies to teach and help children memorize the basic addition and subtraction facts, such as fact families, the "trick" with 9, number rainbows, the doubles, and more.

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Education

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Standard YouTube License

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Uploader Comments (MathMammoth)

  • I learned a few things today. Also I love your books and intend to use them for my 5yo. Do you have any plans to wrtie a book/math curriculum for the K grade?

  • @mrsotter19 No, not at this point. I've written recommendations for K math at

    mathmammoth com/complete/kindergarten php

    put dots where I left spaces.

  • Love your videos! Will you ever make a dvd based curriculum like Math U See?

    Your books are great but my visual learners boys learn better through videos.

  • @exodus007 I intend to produce more of these videos at YouTube... and hope to have some to match the books. But I doubt the curriculum will ever be totally video based.

  • I want download this viedo clip can u suggest me how to do it

  • @Lhaptshering : you can embed it on websites using YouTube's embed ability. To download it, I don't personally know how, but try search in Google for how to download YouTube videos.

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All Comments (16)

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  • I am stuck on my sats at school and i need help, i'm not getting good marks :'(

  • @MathMammoth Yes. We are doing Singapore Math K at the moment and will transition to MM when we finish it. Thank you for answering my question. :-)

  • thank you verer much

  • I'm 20 and i use my fingers to add. I actual learned something in this video where you said you can round a number like 8 to 10 and then add. Thanks.

  • I learned an awesome model today at an interview, of all places. The "as compared to" model for subtraction. Take "7 - 2". This can be read as "7 as compared to 2", which leads to an answer of "they are comparably 5 apart".

    It also works for subtracting negatives! "7 - -2" can be read as "7 as compared to -2", which leads to an answer of 9 since 7 and -2 are comparably 9 spaces apart!

    So awesome!

  • thanks for your help that's the staff that parents appreciate to help our kids with their homework you do a great job.

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