How do you do the pick a number between 1 and 10 trick?

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.

How do you do math in your head?

Quickly Do Maths In Your Head With These Mental Tricks

1. Calculate percentages backward.
2. Subtract without carrying digits.
3. Tell if a number is evenly divisible by another number.
4. Use these multiplication shortcuts.
5. Memorise simple arithmetic.
6. The difference between two square numbers is the product of their square roots.

How do you add 6 to a number?

Add 6 with the getting result. Half the answer, that is divide it by 2. Take away the number you have thought from the answer, that is, subtract the answer from the number you have thought. Think of any number. Subtract the number you have thought with 1. Multiply the result with 3. Add 12 with the result. Divide the answer by 3.

How do you subtract a number from a thought?

Add 6 with the getting result. Half the answer, that is divide it by 2. Take away the number you have thought from the answer, that is, subtract the answer from the number you have thought. Think of any number. Subtract the number you have thought with 1.

How do you make a child subtract 7 from a number?

Have him divide their current number by their original number. Instruct him to subtract 7 from their current number. “Guess” the answer! If the prior steps were done correctly, the right answer will always be 3.

How can I Make my Friend multiply numbers in his head?

This time, you’ll have to choose a number too, so have an even number in mind before you begin. Once your friend has chosen a number, follow these steps: Tell him to multiply the chosen number by 2. Choose an even number to use yourself. Ask your friend to add this number to the one in their head. Tell them to divide the new number by 2.