Home - Exercises for soroban examination

• https://www.amazon.com/Standard-Soroban-Abacus-digits-43300/dp/B001MTHZ88/ref=sr_1_3?ie=UTF8&qid=1468672577&sr=8-3&keywords=soroban
• http://webhome.idirect.com/~totton/abacus/
• http://www.ee.ryerson.ca/~elf/abacus/index.html
• http://www.uitti.net/stephen/soroban/soroban_sheets.pl
• http://www.uitti.net/stephen/soroban/multiplication.pl
• https://sites.google.com/site/osakasoroban/materials-1/book
• http://kamedake.com