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Monday, October 26, 2009

MAGIC 1089 - A COOL MATH TRICK

  • Write down a three-digit number whose digits are decreasing.
  • Then reverse the digits to create a new number.
  • Subtract the reversed number from the original number.
  • With the resulting number, add it to the reverse of itself.

The number you will get is 1089!

EXAMPLE :
  • Let us take 532 (three digit number in decreasing order).
  • Then the reverse is 235.
  • Subtract 532-235 to get 297.
  • Now add 297 and its reverse 792,
  • The resulting answer is 1089!

Division by addition

Multiplication TABLE 9 using FINGERS

MATHS AND MUSIC




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