They told me that they didn’t know the names of countries. Each hour, someone would finally think of Denmark. Then, they would start telling everybody else. And, then they would say their next answer out loud and then their next. So, by the time we got to the end, it wasn’t really “amazing” that I could tell them what their answer was since they had kept saying them out loud. You see, I assumed that my students would be able to come up with a country that started with the letter D. Nope. One student suggested that maybe the answer was Denver. I used this mathematical magic trick with my students on the second day of school. I will admit that I was one of the 98% who arrived at that answer when I tried this myself at home.

I found it to be very interesting reading. Try it again with another starting number the answer is ALWAYS 2. The newsletter goes into further details about why most people end up with these answers. Prepare to have your mind read!Īre you thinking of a kangaroo in Denmark eating an orange?Īccording to the University of Waterloo’s math newsletter, 98% of people who complete this activity will end up choosing Denmark, kangaroo, and orange. Once you’ve thought of a country, animal, and letter, scroll down. After all, I can’t read your mind and tell you what you are thinking of if you aren’t playing along! Have you been playing along with this mathematical magic trick? If not, you are about to miss out on a lot of fun and unexpected joy.

Think of the name of a fruit that starts with that letter.

Remember the last letter in the name of that animal.

Think of an animal that starts with that letter.

Next, you ask for 3 random numbers from 3 different audience. Inside the envelope, you say is a prediction.

Remember the last letter of the name of that country. You begin by showing the audience an envelope.

Think of a country that starts with that letter.

Determine which letter in the alphabet corresponds to the number you ended up with.

If the number is a 2-digit number, add the digits together.

Tell the person to call out, stop, when they are ready. Once you grab the cards, drop them from your left fingers into your left hand. Just note the third horizontal line of number -7726. Magic trick with numbers guessing Ask your friend (or someone in the audience) to think a whole number between 1 and 9 and keep it in their mind. Perform the hindu shuffle force, holding the deck in your right hand and using the fingers and thumb of your left hand, grabbing a group of cards from the top and moving them left. The magician, however, can come up with the answer almost instantly. Either way, it will take the ordinary person person a little while to come up with the answer which is 27724. If you ask someone in the audience to add up those four numbers they will usually need to get a pencil and paper out and do some long winded addition, or they might use a calculator. So in the picture shown above the numbers would read:4967,9342,7726,5689.

The sum of four numbers, no two in the same column or row, will always be 34. The four numbers in the diagonal of the matrix have a sum of 34 (the trace of the matrix is 34).

When you place thefour sticks side by side, you have four digit numbers which should be read horizontally. Answer To A 4×4 Grid Prediction Math Magic Trick. There are four square sticks with random single digit number down each side. When the last card has been looked at, the total of all the top left hand corner numbers will be the secret number.Īnnounce the answer to your audience and recieve the applause! If it does not the card should be put to one side.Īs cards are handed to the magician, he should add the numbers in the top left hand corners together. If it does, the card should be handed to the magician. Ask them to look at each card in turn to see if the number they have secretly chosen appears. Search: Think Of A Number Between 1 And 10 Magic Trick. Hand all six magic number cards to that person. Ask somebody in the audience to pick a number between 1 and 60, but not tell anybody what number they have chosen.