Mental strategies for subtraction

We have started a new maths channel for P6 number work. There will be a link on the side bar to that shortly. Meanwhile please have a look at our latest batch of videos which explain some of the strategies for mental subtraction we have been practising. The main thing with strategies is knowing when to use which strategy. There are more strategies - some are unique, individual and very complex - but these are the ones which we think are the most clear and efficient. Our aim was to also make sure our explanations were clear visually and verbally.

19 comments:

  1. Hello class 6 I hope you liked doing the math videos I think my group did very well. My group was me Erlend and Jack and I think that was the right strategie for us. Bye Brogan

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  2. when we were making this video we had to do lots of planning and making it sound clear enough it was loads of fun.
    Angus

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  3. It was very interesting making our stratigies I was i a group with Brogan Jack we were doing splitting I thought we were doing pretty well are stratigie worked and we completed the work and we did very well on our video we explained it and we split up the work so everyone would get a shot of talking. Erlend.B

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  4. Hi class 6 those math videos are really good.scott

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  5. I enjoyed the subtraction videos. I liked listening to other peoples videos and making and practicing my video. I was in a group with Aiden and Lauren. We did subtracting multiples of a hundred. The good thing about my group was the cooperation skills and the way we had a forward plan. All we needed to improve was sticking to the plan and remembering what to say.

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  6. Hello everyone, when me and my group did this we were excited it made me more confident about being in a video it was fun doing the maths video. Darby

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  7. We were doing subtraction my group had to bridging a multyplie of 10 .I personly think we work good because we all had something to say and we never argued with each other .William

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  8. Maths was really good with my groop we all had diffrent jobs my and Decland wanted diffrent i wanted it to be picture perfict he wanted it to be normal over all it was really good hope we do some thing the same Robert

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  9. I thought it was fun because I understand it. Are video went well are tactic worked well.
    Jake

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  10. It was fun doing the different strategies for subtraction. My group did multiples of 100 we did the sum 7600 take away 800 doing our strategie it was easy. Aiden

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  11. I liked doing the number line because it is a good strategies.

    BY KADYN

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  12. Hi everyone it was fun doing this group activity in my group I had Daisy and Angus. First we said who was doing what part then after that we watched two other groups and they watched us do ours it was really fun and I hope we can do something like this again. Kaylen

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  13. Me Cameron and Declan did subtracting multiples of 100 4 digits i liked doing it. I like addition better we worked good to gether.
    Robert

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  14. Last week we made maths videos I was in a group with Declen and Robert we did the subtracting multiples of 100 4 digit we got a little bit of time to practice the sum when we made the video i got to say remember to put the small number on the left hand side and the big number on the right hand side and then after the sum I got to add it up Cameron

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  15. Hiya class 6,
    I had lots of fun making maths subtraction videos in groups, I was in a group with Scott and Erin.K but Erin was ill so she couldn't do it.
    We did 3 different stratagies, number line, doing it in your head but still writing it down and making your jumps bigger but quicker.
    I had lots of fun doing Math videos and I hope we can do them again next term.
    Caitlin.

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  16. Hi everyone I really enjoyed making our videos on subtraction because we have to think about how we explain it. I also enjoy listening to over peoples videosand thinking about how well they did. Me, Aiden and Sofia where in a group together and I think we did really well. I hope that some time soon we will get to make another video like it soon. Lauren

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  17. Hi everyone we made some videos about helpful math strategies.Everyone did really well I enjoyed all of them. I liked how everyone layed out there videos and everyone had something to do.Cierra

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  18. Hi Class 6, I really enjoyed watching your videos showing different mental strategies for subtraction. I liked how you shared the work between the different people in your group. You gave clear explanations about your strategy and kept a good pace. Some of the groups shared why they were chunking the numbers in a particular way. I found this useful because it helped me to understand the strategy and how I could apply it again in the future using a different set of numbers.
    Mrs McCracken

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