??7
 x 3??
  ?0?3
  ?1?
 ?5?
 ?7??3

The above equation was written on a chalkboard to represent an example of a correctly answered multiplication problem. However, the class prankster went when the teacher wasn't looking and smudged many of the numbers. What did the original problem read?

    117
 x 319
--------
  1053
  117
351
--------
37323

Edited on January 22, 2009, 6:01 am

Posted by K Sengupta on 2007-08-17 12:30:19