Five is Fine• 5x5=25• 15x15=225• 25x25=625• 35x35=1225
Bride in Saree, Bridegroom in Dhothi, women in Churidar.The stout girl is my daughter Rajitha • 5x5=25 • 15x15=225 • 25x25=625 • 35x35=1225 • We now have a hypothesis: Square of any number ending in 5 will have 25 as the right hand side of the answer. Verify this using various numbers
• 1_x1_=2_• 2_x2_=6_• 3_x3_=12_Removing 5s from left and25 from right we get the above logic,which is wrong.Family Photo in front of theManger, On Christmas Eve 2011
Correct form will be1x2=22x3=63x4=12We now have a hypothesis. Just add 1 to the second numberand multiply to get theLeft Hand Side of the answer.Test your hypothesis55x55 =30255x6=30 for the left hand side5x5=25 for the right hand sideIt works.
http://www.wiziq.com/seenaNow use Excel / Calculator to find995 x 995It is99x100 on LHS5x5 on RHSDitto for 9995 x 9995 = 999 000 25This means, write the number of 9s, then write thesame number of 0s and write 25 here9999 9999 5 x 9999 9999 5 = 9999 9999 0000 0000 25
A particular slide catching your eye?
Clipping is a handy way to collect important slides you want to go back to later.