Five is Fine

• 5x5=25• 15x15=225• 25x25=625• 35x35=1225

• 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

Bride in Saree, Bridegroom in Dhothi, women in Churidar.

The stout girl is my daughter Rajitha

• 1_x1_=2_• 2_x2_=6_• 3_x3_=12_Removing 5s from left and 25 from right we get the above logic,which is wrong.

Family Photo in front of the Manger, On Christmas Eve 2011

Correct form will be1x2=22x3=63x4=12

We now have a hypothesis. Just add 1 to the second numberand multiply to get the Left Hand Side of the answer.Test your hypothesis55x55 =30255x6=30 for the left hand side5x5=25 for the right hand sideIt works.

Now use Excel / Calculator to find995 x 995It is 99x100 on LHS5x5 on RHSDitto for 9995 x 9995 = 999 000 25This means, write the number of 9s, then write the same number of 0s and write 25 here9999 9999 5 x 9999 9999 5 = 9999 9999 0000 0000 25

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