How can you guess what number someone is thinking of?

Trick 1: Think of a number

  1. Pick a whole number between 1 and 10.
  2. Add 2.
  3. Multiply by 2.
  4. Subtract 2.
  5. Divide by 2.
  6. Subtract your original number.
  7. Everyone’s final answer will be 1.

What is the best number ever?

Because of these two properties, it is the sole Sheldon prime, an homage to Sheldon Cooper, the fictional theoretical physicist on the television show The Big Bang Theory who claimed that 73 is the best number. the smallest prime with a composite sum of digits, in base 5. palindromic in bases 2 (10010012) and 8 (1118).

How do I improve my mental maths?

How to Improve Mental Math Skills

  1. 1 Break addition and subtraction problems into parts.
  2. 2 Change the problem to make round numbers.
  3. 3 Learn to add many numbers at once.
  4. 4 Multiply from left to right.
  5. 5 Try a fast multiplication trick best for numbers 11 through 19.
  6. 6 Simplify problems with numbers ending in zero.

How do you read someone’s mind with math?

To read someone’s mind with math, ask your partner to pick a number between 1 and 10. Tell your partner to multiply their number by 2, then multiply the new number by 5. Divide their current number by the original number, then subtract 7 from the answer.

What are some cool math mind reading tricks?

Cool mathematical mind reading tricks are a great way to entertain your friends. Ask someone to think of a number between 0 and 9. Then, tell them to double the number and add 5 to the new number. Using the new number, have them multiply it by 5. Now have them think of another number between 0 and 9 to add to their current number.

How do I multiply a friend’s numbers?

Once your friend has picked a number, here’s how to do it: Tell your friend to multiply their number by 9. Tell them to add the first and second digit of their number together.

What is a mind reading game?

Mind reading games are often based on some mathematical process that always produces a predictable result. The magician uses his or her showmanship to keep the audience engaged in the trick and misdirection to keep the audience from figuring out how the trick works.