Number tricks games

In this one, each number is found by subtracting the smaller from the larger of the two numbers underneath. The correct answer here is , which equals 4. Try this one on your students, then see if they can create their own math pyramids! Learn more: Math in English. Switch things up with a crossword made up of numbers and equations instead of letters!

Have kids solve this one, then challenge them to make up one of their own. Put the cards in a pile and ask a student to pick any number between 1 and 30, without telling you what it is. If they say yes, note the number in the top left corner.

Keep a running sum of those numbers, and announce your total at the end. Now ask kids if they can figure out how the trick works. Learn more: Games 4 Gains. Toothpick puzzles encourage logical thinking skills and geometry concepts too. Pass out a few boxes, then have kids arrange 12 toothpicks as shown to make 4 squares. Ask them to figure out how they can move only two toothpicks to make 6 squares. The answer is simple once you see it, but it requires kids to make a leap and recognize not all the squares need to be the same size.

Find 19 more toothpick puzzles at the link. For even more fun, ask kids to create their own toothpick math puzzles! Then, they need to eliminate 2 numbers in each row so the totals horizontal and vertical equal The answer is at the link. Learn more: Dover Publications Answer 2. Practice multiplication facts by creating graph paper designs called spirolaterals. When they see them visually, kids will learn to identify patterns in their multiplication tables.

Learn more: SharynIdeas. Given two loops of paper chain and a pair of scissors, can kids figure out how to change them into a single square? The answer video walk-through included is at the link. The game of dominos is really one big math puzzle all on its own, but there are lots of other cool math tricks you can do with them!

You can arrange them in magic squares and rectangles , lay out multiplication problems, set up magic windows, and more. Visit the link to learn how they work and find more ideas. Try this fascinating math trick to amaze your students! Count fingers on either side of the "fold" to get the answer.

In this case, the answer is To multiply 9 times 6, fold down the sixth finger, giving an answer of Actively scan device characteristics for identification.

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He'll draw the triangle in the circle in the air and you'll pick it up subconsciously and draw it. Here, you and your friends will be locked in a room with 5 objects; deck of playing cards , pair of sunglasses, salt shaker, cell phone and a cup. And then the mentalist will have you choose one of the objects and keep it secret.

He will then come into the room, read your mind and magically know which object you chose and get it absolutely right! In this case, the mentalist just chooses a person whom he'll work with and get him to tell him through his body posture, specifically through the special signals he sends to the mentalist unknowingly. Here, you are handed a square piece of paper with a crystal ball drawn on it and that has also been folded twice.

Once you are done, you hand it to him and he tears it up in front of you, without looking at it and then gives you the exact number you had written in a creative way that appears as if he read your mind. The Mentalist does this purposely because that is what will help him get to the number you've written without you noticing it.

After you've written your secret number and handed it over to him, he starts tearing it up. As he tears, he cuts one side of the paper carefully while keeping track of the movement of the central part of it. Why he does this, is because the number you wrote has been dissected twice by that part. After he tears it up twice or thrice, he'll wisely unfold it.

In this trick, you are told to think of any state in the United States. And then you are told to read it in your mind as though you are spelling it. After that, you'll be shown a table with many letters with no specific arrangement and with a variety of colors. You'll then be told to identify the color of the last letter of the state you choose in the table and lock it your mind. From there, the mentalist will look at you slyly and then tell you it is color RED, and it's always that!

What the mentalist does , is to make the table have all the last letters of the US with the color red, so what they'll be doing all along is try to confuse and pose as if you are giving away the color with your mind, when they already know it. Here, the mentalist will have to pick a nail stuck underneath a bottle which is among two other bottles.

Ideally, you'll get a nail stuck onto the bottom part of a cup. Then, the mentalist or you, will slide this stuck nail in one of the three cups placed on top of a table and upside down. Then the mentalist will leave the room where this is happening to give you the time to shuffle them around so that it is difficult for him to know which bottle the nail is slid into.

After you are through with the shuffling, the mentalist comes in and starts pressing the plastic bottles downwards against the table to have them break. He does that for two bottles without getting pierced by the nail. And you automatically know that the nail is in the third bottle which has not been touched. The secret is in the nail. The stand that supports the nail so that it is able to stand firmly while facing upwards is attached to a short and very thin fishing line which slightly extends beyond the bottle.

With this, he'll be easily able to tell where the nail is by looking at the bottle which had the fishing line hanging outside the bottle.