Book B is the practice book. All the concepts, which were explained in Book-A of this level, have been given here for thorough practice. Dailly practice tracker has been given at the start of this book. Daily practice of 10 minutes is mandatory for the students. The “Dictation Book” for the oral practice is also available here. There are many ways to teach numbers to kids. Abacus is a great tool to teach your child simple math such as counting, addition, subtraction, multiplication, and even division. This is “B” book of Level-5, which contains Plus and Minus of Double and Triple Digit numbers. It has multiplication of double and triple-digit multiplicand by the single-digit multiplier and also division of Triple-Digit dividend with single-digit divisor. Basically, this level is for the thorough practice of the first four levels before going further towards the toughest part of this education. This book is suitable for those students only, who have completed the first 4 Levels of Abacus education.