Free soroban learning tools
The tools we use in class and share free of charge with parents, teachers and clubs: printable practice sheets, an unlimited problem generator, graded tests, a calculation-level game and a book for adults.
Soroban & mental math worksheets
12 soroban sheets by level, 6 mental-math sheets for grades 1–2 and 4 grade-1 thinking-math sheets. Each with an answer page. Print at home.
Get the sheetsMental math trainer – flash anzan
Numbers flash on the screen and your child adds or subtracts them in their head. Choose digits, how many numbers, and speed. Works on a phone.
Practice nowPractice problem generator
Choose addition and subtraction, multiplication or division, the number of digits, terms and problems. Make new problems every day and print them. Vietnamese–English interface.
Open the toolGraded test maker
Choose a grade (1–8) and problem types to create a test in exam format, with show/hide answers and print.
Open the toolCalculation level check
Answer the questions one by one and see your calculation level. Try it as a family – parents should play too.
PlayIntroduction to Soroban for Adults (Vietnamese)
Step by step with bead diagrams: setting numbers, adding and subtracting with the 5-friend and 10-friend rules, multiplication, division. With exercises and answers. Free.
See the bookSoroban knowledge for parents
What a soroban is, whether it works, what age to start, learning at home, comparison with Finger Math, the history of the soroban.
Read the articlesThe tools belong to Kodomo Soroban Center and are free to use for learning. We will add new tools (an online soroban) to this page.
Tools help you practice. A teacher helps you learn it right.
Classes of 3–5 at Vinhomes Gardenia (Hanoi), taught exactly as in Japan. Free trial lesson.
