The present invention relates to an apparatus, system, and method for teaching mathematics. Specifically, the present invention relates to a system and method for helping students solve advance multiplication problems and teaching students how to perform the same. Even more specifically, a student may use the present invention to cover up confusing numbers and isolating a single digit for multiplication. The present invention provides students with a space for providing the solution to the single digit multiplication. Further, the present invention allows a student to shift to a different single digit for multiplication without becoming confused with the previously solved multiplications.