This is very similar to what I use. I was taught using new math in the 60s and 70s, but since I've always loved doing math puzzles, some of which involved subtraction, Ive learned to subtract from left to right. In each column, if top digit is smaller than bottom digit, I just add 10 to it. So middle column the problem would be 13-9. Here is the process: 537 - 294 From left to right I get: 5 - 2 = 3, but what follows 5 is smaller than what follows 2, so final result will be on less = *2* (1)3 - 9 = 4, and what follows 3 is greater than what follows 9, so we take are ok = *4* 7 - 4 = *3* Answer, from left to right: *243*

@MathChallenge1

5 ай бұрын

That is amazing, thanks so much for sharing 🥰🙏

I’m on level 2 of Singapore math with my son. The teacher’s guide is hard to understand, so I appreciate videos like yours 👍.

@MathChallenge1

7 ай бұрын

That is amazing! Good luck and thank you for such a nice comment 🥰🙏

This is a MUCH better way to teach this than what we were taught in school with borrowing. Thanks for thus great concept and video!

@MathChallenge1

Жыл бұрын

Awww thanks so much! I’m glad it helped 😊

@chocolateangel8743

10 ай бұрын

In the U.S., it's called the Partial Differences method. I prefer it over the traditional method as well.

@ayeshakureshi3257

5 ай бұрын

i find traditional method easy where can i get pdf of singapore maths books

@trevorm1970

4 ай бұрын

Actually the 300-60 you still have to carry over right? In order to get the 240. You'd also need to carryover if the last number was also larger on top

I grew up in Singapore and I have never done Maths this way before. When has this become Singapore Maths? Actually with the traditional way of borrowing, if we have done enough practice, we can be super fast too. But I will definitely have a try at this Singapore Maths that you are showing.

@MathChallenge1

10 ай бұрын

I totally agree! I have seen this in certain books of Singapore Math, it’s an optional method of teaching, I believe. Thank you for watching and giving it a try 🥰🙏

Wow, this is epic! I'm going to practice with my kids

@MathChallenge1

Жыл бұрын

Thank you so much!! Please let me know how they did 😊

537-294=537-300+6=243

@MathChallenge1

10 ай бұрын

That’s a great way to think about it 😊

Ohy gosh. Wow. That's amazing. I hope I can find this again when I'm teaching my kids.

@MathChallenge1

5 ай бұрын

Thank you, please keep my channel close to your heart 🥰🙏

Wow amazing

@MathChallenge1

10 ай бұрын

Thank you so much!!

I love it!

@MathChallenge1

Жыл бұрын

Thanks so much!! 🙏

Very good 👍

@MathChallenge1

7 ай бұрын

Thank you so much 🙏

🎉🎉

I was taught to calculate from right to left and it seems easier and faster.

@MathChallenge1

4 ай бұрын

Most of us were! Definitely takes a bit to get used to 😅👍

i am in euro 4 class he help a lot i going for exam on 27 augset

@MathChallenge1

6 күн бұрын

That’s amazing! Good luck!!

Students who have not learned about negative numbers may struggle with this.

@MathChallenge1

6 ай бұрын

We aren’t working with negative numbers here. When the top number is smaller than the bottom, we think of it as “we owe” and count upwards toward that number. Hope this makes sense 😃🙏

pretty coool! 🤩

@MathChallenge1

2 жыл бұрын

Isn’t it? 😊👍

Seems convoluted to me. Getting the answer doing it the traditional (old way) was much quicker! Why do you need all that "I have' and "I owe" stuff.

@MathChallenge1

10 ай бұрын

It definitely takes a lil bit to get used to, but it does get faster 😊

@ayeshakureshi3257

5 ай бұрын

loved your sentence Why do you need all that "I have' and "I owe" stuff.

I can’t even remember what’s the mext number after the hundreds 😅

@MathChallenge1

Жыл бұрын

You’ve got this 💪🙃

right to left is easier than this

@MathChallenge1

10 ай бұрын

it does take a little bit of time to get used to! Thanks for watching 😊

I didn't get it at all!😢

What is this method called ?

@MathChallenge1

29 күн бұрын

Some (not all) textbooks in Singapore Math teach this method 😊

@thetheashow1324

29 күн бұрын

@@MathChallenge1 do you know of any elementary curriculum that teach this method?

@MathChallenge1

26 күн бұрын

@@thetheashow1324 it is in one of the Singapore Math curriculum books, but sadly, I don’t know exactly which one 😔

All most the Same Method was taught some 100+ years ago in India called Vedic Math It was more effective than that this, Due to politics it gone into history

@MathChallenge1

8 ай бұрын

you are absolutely right! thank you for watching and commenting 😊🙏

I'm surprised that this is so inefficient. I thought it would be cleaner than this, given that Singapore Math has a reputation... and that you're calling this "mental." It's a lot more bookkeeping (and thus has more opportunity to introduce error) than either the one-up-one-down approach of Old Math or the "borrowing" method of New Math.

@MathChallenge1

6 ай бұрын

Thanks for watching and for your feedback! It may not be for everyone, but if you can get used to it, it’s definitely easier to subtract mentally going left to right instead of the other way around 😊🙏

Congratulations for complicating subtraction😂😂😂😂

@MathChallenge1

7 ай бұрын

haha, you are very welcome 😆

Realizing you learned math in the wrong country 😭