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What are some calculator tricks?

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What are some calculator tricks?

The Human Calculator, aka the 3-7-13-37 Trick

  • Have your friend pick any 2 digit number (82, for example)
  • Tell your friend to multiply this number by 3 and hit enter/equal (82 x 3 = 246)
  • Then multiply that result by 7 and hit enter/equal (246 x 7 = 1,722)

How do you confuse a calculator?

If you get a number greater than 9, add the digits up again. For example, if the number is 34291, we add the digits up (3 + 4 + 2 + 9 + 1) and get 19 ; add those digits (1 + 9) and get 10 ; add those digits (1 + 0) and get 1 ; so the remainder when dividing by 9 would be 1.

How do you make a birthday in math?

Birthday Math Trick

  1. Add 18 to the month they were born.
  2. Multiply by 25.
  3. Subtract 333.
  4. Multiply by 8.
  5. Subtract 554.
  6. Divide by 2.
  7. Add their birth date.
  8. Multiply by 5.
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What can you spell with a calculator?

Words that can be made with calculator

  • accrual.
  • caracol.
  • caracul.
  • catcall.
  • cloacal.
  • curacao.
  • curacoa.
  • locular.

What are some fun things to do with a calculator?

Amusing things to do with a calculator. Have someone pick a number between 1 and 9. Now have him use a calculator to first multiply it by 9, and then multiply it by 12,345,679 (notice there is no 8 in that number.). Have the person show you the result so you can tell him the original number he selected.

What is the magic trick you can do with a calculator?

Here is one magic trick you can do with anyone, Give them a calculator(you can also play while reading this question,so quickly grab a calculator) 1.choose and write any number between 1-400. Then tell them to (or you do it if you’re playing now):-. 2. multiply it by 6. 3.square the number that came.

What are 10 tricks to do fast math?

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10 tricks for doing fast math. 1 1. Adding large numbers. Adding large numbers just in your head can be difficult. This method shows how to simplify this process by making all the 2 2. Subtracting from 1,000. 3 3. Multiplying 5 times any number. 4 4. Division tricks. 5 5. Multiplying by 9.

What are some simple maths tricks to remember?

Here are a few more maths tricks which are simple to remember. Multiplication by 2 and 4: When a number is multiplied by 2 or 4, then the last digit of the resulting value will be an even number always. Multiplication by 5: When a number is multiplied by 5, then the resulting value will either end with 0 or 5.