Take part in an island adventure that is both fun and challenging! Determine which basic facts children need to master and then select the cards for one of four skill levels: sums to 10, sums 11 to 18, minuends to 10 and minuends 11 to 18. Players take turns uncovering the board by answering and matching game cards correctly and see the funny antics of delightful monsters. This colorful memory-matching game includes a game board, 240 game cards, and directions. It also supports NCTM standards.