## Thursday, May 3, 2012

### Maths magic trick - Birth day date calculation

School children might be enjoying their summer vacations now as their examinations are completed. Here is a maths trick to play for calculating your birth day date. You can surprise your friends with this magic trick and enjoy the fun. Here is the trick.
• Step 2: Multiply by 25.
• Step 3: Subtract 333.
• Step 4: Multiply by 8.
• step 5: Subtract 554.
• step 6: Divide by 2.
• step 8: Multiply by 5.
• step 10: Multiply by 20.
• step 11: Add only the last two digits of your birth year.
• step 12: Subtract 32940 to get your birthday!.
Example: If the answer is 123199 means that you were born on December 31, 1999. If the answer is not right, you followed the directions incorrectly or lied about your birthday.

### Funny maths interesting facts

Please read the following funny maths interesting facts. All the tricks given below are based on sequential manipulation of numbers.
 Sequential 1's with 9 1 x 9 + 2 = 11 12 x 9 + 3 = 111 123 x 9 + 4 = 1111 1234 x 9 + 5 = 11111 12345 x 9 + 6 = 111111 123456 x 9 + 7 = 1111111 1234567 x 9 + 8 = 11111111 12345678 x 9 + 9 = 111111111 123456789 x 9 + 10 = 1111111111

 Sequential 8's with 9 9 x 9 + 7 = 88 98 x 9 + 6 = 888 987 x 9 + 5 = 8888 9876 x 9 + 4 = 88888 98765 x 9 + 3 = 888888 987654 x 9 + 2 = 8888888 9876543 x 9 + 1 = 88888888 98765432 x 9 + 0 = 888888888

 Sequential Inputs of 9 9 x 9 = 81 99 x 99 = 9801 999 x 999 = 998001 9999 x 9999 = 99980001 99999 x 99999 = 9999800001 999999 x 999999 = 999998000001 9999999 x 9999999 = 99999980000001 99999999 x 99999999 = 9999999800000001 999999999 x 999999999 = 999999998000000001 ......................................

 Sequential Inputs of 6 6 x 7 = 42 66 x 67 = 4422 666 x 667 = 444222 6666 x 6667 = 44442222 66666 x 66667 = 4444422222 666666 x 666667 = 444444222222 6666666 x 6666667 = 44444442222222 66666666 x 66666667 = 4444444422222222 666666666 x 666666667 = 444444444222222222 ......................................

### Amazing prime numbers in Maths

Here is a list of amazing prime numbers which are unbelievable. Here are some of the funny interesting facts about amazing prime numbers. Please read them and enjoy the facts about amazing prime numbers. Here is a list of the amazing prime numbers. 31 331 3331 33331 333331 3333331 33333331 One amazing thing is that the next number 333333331 is not a prime number. Because when we multiply 17 X 19607843 = 333333331. Hope you enjoyed the amazing prime numbers. If you have any such amazing things related to maths, please post as a reply.