Connecting Math to Our Lives Report A WONDER SUM THAT IS ALWAYS THE SAME Bangalore, INDIA: WONDER SUM THAT IS ALWAYS THE SAME A WONDER SUM THAT IS ALWAYS THE SAME Take any three-digit number in which the first digit is larger than the last, say 725.reverse it making 527 and subtract the smaller from the larger, making 198. Now add the result to the same number reversed, which is 891. The answer is 1089 whatever number you start with. How can you say the age of your friend? Ask him to write down his age, say 16.then double it, making 32. Add one to it, making 33. Multiply it by 5, making 165. Now add 5 to it, making 170. Now multiply it by 10 making 1700. Then subtract 100 making 1600. Now ask him to tell the number. You delete the last two digits. The remaining number will be his age, 16. Gets a lots of 2 If you want to get lots of two just by adding numbers. Write number from one to 9 in one line and then 9 to 1 in the other and again 1 to 9 on three line 9 to 1 in fourth line. In fifth just write two and add. Then you will get lots of two. 123456789 987654321 123456789 987654321 000000002 -------------- 222222222 -------------- Jugglery of three digit numbers Consider any three-digit number. Repeat this number to form a six-digit number. Now divide the number by 7. Divide answer by 11. Now divide the answer by 13. You have ended with the same number you started with. Example: three-digit number 362. Now repeat this number to form six digit=362,362. Dividing it by 7, we get 51766.Dividing 51766 by 11 we, gives, 4701. Add now dividing 4701 by 13, gives 362. MAGIC NUMBERS 1 15 14 4 12 6 7 9 8 10 11 5 13 3 2 16 This magic numbers when we add horizontally, vertically or diagonally the sum is always same. Ex =1+12+8+13=34 1+15+14+4=34 `1+6+11+16=34