A Complete Abacus Mind Math Instruction and Workbook for addition and subtraction, the book includes: Instructions on how to effectively introduce children to mind math with ways to build their skill. Integrated workbook work is given after each instruction section.Examples are shown for each section with clear graphics on how to proceed.The book explains how to calculate both on the abacus and in the mind. The Soroban has for a long time been used as an instrument to fast track children into a better understanding of math.Abacus Mind Math with it s methodical approach:1. Strengthens mental visualization2. Sharpens concentration3. Improves academic results4. Enforces problem solving techniquesThese attributes combine to boost the confidence of the child throughout their learning years.This useful and impressive skill would be an asset for anyone