Addition Memorizer helps you memorize the 9 x 9 addition tables. General Features + Provides interactive lists covering the first 9 addition tables. + A practice area to improve accuracy. + A timed area to improve speed. + Keeps track of overall progress and best times. There are five general areas: Times Tables provides a stress free learning environment. It's a modern take on addition flash cards. This area displays the entire addition table, a "row" at a time. You can show or hide the answ