In addition to these cards, there is a card listing "Basic Addition Facts" (written vertically, with answers) and "Basic Addition Combinations" (written vertically, without answers). Four cards give ...

amazon.com Marvel – Addition 0–12 Flash Cards, Spider-Man, Ages 6+ Learn to add with Spider-Man using Marvel Addition Flash Cards, Spider-Man ($3). It has addition tables zero through 12.

This set of flash cards reflects the way of presenting addition and subtraction problems that emerged. The set consists of flash cards showing sums written out horizontally on one side and differences ...