Ingenious math games with calculator

Our old women calculators school, institute or university still have a lot to say nowadays; and thanks to them we can surprise our friends and family with all kinds of games with the calculator , each more ingenious. Now we want to offer you the definitive math and calculation tips , 8 ways to amaze locals and foreigners with ingenious digital puzzles that we can use to make meeting our own people more enjoyable. In addition, we offer you a small extra tip on the calculator iPhone , something you probably don't know although you are a user iOS . Then,the best math tricks with calculator .

The best math tricks with a calculator

The mystery of the number 73

1. Write the number 73 on a piece of paper. without showing it to anyone, fold it up and give it to someone.
2. Ask that person to think of a four-digit number and enter it twice in a row on the calculator (for example, 12341234).
3. Tell him to divide the number by 137.
4. Now tell him that he can divide the result by his original four-digit number; Have him check the folded paper (73).
5. The calculator and paper will display the number 73.

Cycle 421, XNUMX et XNUMX

1. Choose a number and enter it into the calculator.
2. If it's even, divide it by 2, if it's odd, multiply it by 3 and add 1.
3. Repeat the process over and over with different numbers.
4. The result will always be 4, 2 or 1, whether it is odd or even numbers.

Mathematical magic trick

This time we are going to play with the number 37037:

1. Multiply the number 37037 by a multiple of 3 to 27.
2. The result will always return digits with their six digits equal (for example, 111111 if we multiply the original number by 3).

Prediction of 10

Follow these steps to surprise your friends with predictions with the angel number 10 as a result:

1. Tell someone to give you any number.
2. Add 5.
3. Subtract 2.
4. Add 6.
5. Subtract the original number.
6. Add 1.
7. The result is always… 10!

Guess the birthday

Now you can guess your friends' birthday (if you don't already know it) with some nifty math trick with your calculator; Give the calculator to the person you want to surprise and tell them to follow these steps:

1. Enter the number 7.
2. Multiply it by the number of the month of birth (for example, March 3).
3. Subtract 1.
4. Multiply the result by 13.
5. Add the number of the day of your birth (numerical day of the calendar).
6. Add 3.
7. Multiply the result by 11.
8. Subtract the month of your birth.
9. Subtract the day you were born.
10. Divide the result by 10.
11. Add 11.
12. And finally, divide the result by 100.

Thus, a number will appear on the screen of the calculator which will correspond to the birthday of the person you want to surprise; So, if he was born on March 2, the number 3.02 will appear, or what is the same, 3 (March), 02 (day of the month).

Predict bad luck

1. Have someone enter a three-digit number twice into a calculator without your knowledge (for example, 123123).
2. Tell him that this number is divisible by 11; Ask him to perform the operation.
3. Now tell him that this number is also divisible by 13; Ask him to perform the operation again.
4. Tell him to divide the result by the original three-digit number.
5. Tell him the result is 7.
6. If you want to predict bad luck, ask him to divide the number from step three by 7.
7. The result will be 13, which is the number of bad luck.

Infinite loop

1. Have someone choose a number between 1 and 9.
2. Have the person who chose the number multiply it by 9 and the result by 12345679 (omitting 8 from the sequence) with the calculator.
3. Ask the person who did the calculation with the calculator to tell you the result.
4. Tell him the number you originally selected.
5. The result will always show the original number repeated in order of XXXXXXXXX.

The Mysterious Cycle 6174

We are now going to try our luck with the number 6174, something that will surprise everyone and which does not really present a clear pattern. To play!

1. Enter a four-digit number into the calculator (not a multiple of 1111).
2. Enter them first in ascending order.
3. Then do the same from top to bottom.
4. Subtract the small number from the large number.
5. Repeat steps 2, 3 and 4 for the different results.
6. It will always return 6174!

Bonus tip: delete numbers on the iPhone calculator!

Calculator iPhone does not allow you to to erase independently the numbers entered into calculator via the touch screen keys; If we make a mistake in an operation, we have to erase all the numbers and try again. It was until now! And it is that a user discovered (and shared via networks, going viral ) that if we touch or slide our finger on the digital screen the iPhone calculator, the application deletes the last number entered , which does not appear in the official iPhone instructions. A very useful tip that many iOS users do do not know.

More technical advice:

• The 9 funniest math tips
• How to add fixed speed cameras from Spain to Google Maps
• WhatsApp: How to Install Telegram Stickers on Your Mobile
• Facebook: How to permanently delete your account