Strategies for Addition and Subtraction Facts - Video from Math Mammoth

[chloe1537]

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

[mrsotter19]

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?

[MathMammoth]

@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.

[mrsotter19]

@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. :-)

[olivier1lj9]

thank you verer much

[AaronTrutsJC]

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.

[ZeroSumRuler]

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!

[77jvillagomez]

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

[exodus007]

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.

[MathMammoth]

@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.

[gamnalila]

I enjoy this video. Makes me feel stupid though... nearly 20 wasn't schooled properly. I still sometimes have to add up the subtraction facts in my head, don't have them readily memorized. Workin' on it.

[KS2Maths]

Interesting video, I am a primary teacher in the UK and have made some Key Stage 2 maths tutorials. Check them out by browsing my channel.

[Lhaptshering]

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

[MathMammoth]

@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.

[prakashjeyg]

Wonderful strategy ...But kids should not memorise their maths in any form even you so called strategy.

[ramaraju1]

Excellent Video and Strategies. Really helped me understand how to go about teaching my kids