Students of mathematics need to know their basic math facts with no hesitation and with super speed. The Japanese Abacus (Soroban) - The Soroban, an essential element of Japan Math, is a revision of the Chinese Abacus and allows advanced computation with unparalleled accuracy.Students of the Soroban have an academic edge in daily and competitive math tasks.ogic-Japan Math uses problem solving by using time tested puzzles, strategies and math-based games that originated in Japan. Japan Math is an ancient, turned modern, approach to mastering mathematics. Japan Math is an integrated method that is both teacher tested and theory based.