Subtraction-fest 08 ~ Mental Subtraction By Counting

[@MrVoayer]

Having seen all the previous videos, all the previous methods coming back to basic counting - increasing by 10 - is funny. Only, when it comes to subtracting smaller numbers from bigger ones (126 - 38 ) even counting appears not to be trivial. There could be shortage of fingers ;-)Dear Greame, thank you for teaching us how to count... in order to subtract.

[@CrystalClearMaths]

+MrVoayer Hahaha ... I felt it was worthy of mentioning this most elementary of methods :-). I think most of us still resort to counting sometimes when dealing with simple monetary exchanges, for example.