Revised edition of the practice problem book for the Japanese abacus (soroban) proficiency test, Grade 5. - Title: Soroban Proficiency Test Practice Problem Book, Grade 5 - Revised Edition, 2001 - Price: 350 yen - Contents: Multiplication, division, mental addition/subtraction, and mental calculation - Format: Problem book ★ There is writing on only 4 pages of practice problems. There is no writing on the other pages. ★ It shows signs of use, but there are no issues such as problems being unreadable.