This game is designed to be used as a supplemental material to enhance skills within the LFIN (Learning Framework in Number). While it aligns with the FNWS & BNWS construct of Math Recovery and AVMR (Add Vantage Math Recovery) it is not affiliated with either program. It has been created specifically for rehearsal mode of students within levels 2, 4, and 5 of the FNWS & BNWS construct.

This game is versatile as it crosses numerous levels of ability. Choose a decade of cards either starting with the decuple or off the decuple. After player one organizes the numbers from least to greatest, player 2 collects the cards and remove two or three cards from the deck before handing the deck back to player one. The first player must reorganize the cards to determine what numbers are missing.