Four Plus Flash Cards - All of our flash cards are double sided. Two sided addition flash cards are made by folding the print out twice (quarterfold) so that the problem is visible on one side of the card and the solution is visible on the opposite side of the card. The numbers are printed in gray to reduce one's ability to see through the card and read the answer on the opposite side.
Choose one of the items below to print your flash cards for the problems 4 plus 0 equals 4 through 4 plus 12 equals 16.
