This bundle of combo pack Contains 16 books of all 8 levels (A and B both). These eight levels cover the topics of Addition / subtractions/ multiplications / division / Square / BODMAS / Decimals and Percentage (%) along with Mental Maths techniques. Book “A” is for classwork and Book “B” is for homework. Daily “Oral” practice of 10 minutes is mandatory for the students. Dailly practice tracker has been given at the start of book-B. The “Dictation Book” for oral practice is also available here. Abacus is a great and ancient tool to learn mathematics and Fast Calculations. It helps in the whole brain development of a child. All books are very attractive and of very good quality.