mystic Member Joined 8 Apr 2011 Messages 3,710 Reaction score 1,366 25 Jun 2012 #11 One of your thread posted today only , is also a mental math trick i.e. How to Square 2-Digit Numbers Ending with 5
One of your thread posted today only , is also a mental math trick i.e. How to Square 2-Digit Numbers Ending with 5
S ssparikshya Member Joined 2 May 2011 Messages 4,391 Reaction score 804 25 Jun 2012 #12 well its not divisibility test but good way
S ssparikshya Member Joined 2 May 2011 Messages 4,391 Reaction score 804 25 Jun 2012 #13 well , that works with 5 digit no too
