A set of practice problem books for the Japanese abacus (soroban) proficiency test. Abacus Proficiency Test Practice Problem Books Level 2, Level 3, Level 4, Level 5, Level 6, Level 7, Level 8 Names were written in pencil, so they have been erased with an eraser. Practice Sheets Level 2, Level 3 Level 3 has some peeling and folding where the name sticker was removed. Revised Edition, 2001 A board and magnets are available for those who want them. The board has some peeling on the corners, and the magnets have stains and are slightly sticky due to aging.