Math Tricks

Are you ready to give mathematics skills a boost? These simple math tricks can help you perform calculations more quickly and easily. They also come in handy if you want to impress your teacher, parents, or friends.

 1.Multiplying by 6

If you multiply 6 by an even number, the answer will end with the same digit. The number in the ten's place will be half of the number in the one's place.

Example: 6 x 4 = 24.

2.The Answer Is 2

  1. Think of a number.
  2. Multiply it by 3.
  3. Add 6.
  4. Divide this number by 3.
  5. Subtract the number from Step 1 from the answer in Step 4.

The answer is 2.

3.Six Digits Become Three

  1. Take any three-digit number and write it twice to make a six-digit number. Examples include 371371 or 552552.
  2. Divide the number by 7.
  3. Divide it by 11.
  4. Divide it by 13.

The order in which you do the division is unimportant!

The answer is the three-digit number.

Examples: 371371 gives you 371 or 552552 gives you 552.

  1. A related trick is to take any three-digit number.
  2. Multiply it by 7, 11, and 13.

The result will be a six-digit number that repeats the three-digit number.

Example: 456 becomes 456456.

4.Memorizing Pi

To remember the first seven digits of pi, count the number of letters in each word of the sentence:

"How I wish I could calculate pi.
This becomes 3.141592.

 5.Finger Multiplication Tables

Everyone knows you can count on your fingers. Did you realize you can use them for multiplication? A simple way to do the "9" multiplication table is to place both hands in front of you with fingers and thumbs extended. To multiply 9 by a number, fold down that number finger, counting from the left.

Examples: To multiply 9 by 5, fold down the fifth finger from the left. Count fingers on either side of the "fold" to get the answer. In this case, the answer is 45.

To multiply 9 times 6, fold down the sixth finger, giving an answer of 54.


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