I wish Eddie was my math teacher in high school although my teachers did their best to hold our interest hence my love of math and physics!

I would just like to say, he is one of the most dedicated Teaching YT channel i've ever seen. 9 years. wow! this kind of youtube channel should have more than a million and have 100k views per video. I really Admire you!

Spoilers: Let U be the number of face-up red cards on the bottom right. Because the cards are dealt out in pairs, 52 cards is 26 pairs, so 26 face-up cards would be dealt out in total, so excluding the U face-up red cards, that means that (26 - U) face-up black cards were dealt on the bottom left.

Now I know every time I shuffle cards I am making history

You teach how my 8th grade math teacher taught and he was the best teacher I ever had in my entire school life. You just gained a new subscriber :D

This is such an awesome math magic trick camouflaged in a very neat way.

If Mr Woo was my teacher, my life would be so different... These students are so lucky.

I loved It.

1. 26B + 26R = 52 Cards or 26B:26R (B=R)

Thank you.

The first thing to notice is that the swapping is a red herring. Since the order of the face down cards is totally random, swapping a few from one pile to another can have no effect on the result.

I am sure this will be very awosome .

This seems similar to the "probability" theory. I know a similar "trick", it fundamentally works by a very precise manipulation process which at face value seems random without any predictable patterns. However each stage is critical to the previous one, although each step is fundamental to the last which cannot varied as the whole process is relative to the first step to achieve the impossible prediction of knowing what number of black/red cards will be in a randomly shuffled evenly split piles of cards without even looking at them. My trick is take a deck of 52 cards face down and turn 13 up

That's a fun little problem! Here's what I think. If you pick two cards of the same color in a row, you'd add one card of that color into the face-down deck. If you pick two cards of different colors in a row, you'd add zero card of the first color into the face-down deck. So we can say: a pair is worth 1 point on either side, a non pair is worth 0 point.

I must stay its rather intresting. When I tried it out myself I ended up with each pile having 13 cards each, both on top and bottom. After taking the 2nd step and suffel the 3 cards from to top piles with each other the result was complete symmetry. Not only was the cards in Mr.Woos prediction matching but also the other tow piles with 6 and 6 to 7 and 7 in each pile. Then the odds with ending up with 13 cards in all the piles probably is not very high. Doing the trick once more would most likely give me a different variation.

We are making History doing Eddie Woo maths work/Homework.

Hello 😀👍🙏

EVEN WORDS IS SO HARD TO REACH IN RIGHT PLACE FOR ME. EVEN THOUGH THERE IS PHONE.IF U HELP POOR PPL MY PBLMS WILL GET LOW A BIT.

That number is called "Unvigintillion"