Math-E-Magic Pennies

 

Back to The Book of Think for Monday morning Math-e-Magic. Each child was given ten pennies to arrange in a triangle in descending order (4, 3, 2, 1)

The object is to only remove 3 pennies in total and have the triangle point in the opposite direction.

 Miss C had this figured out in a matter of seconds, by removing all the corner pennies and flipping their spots.