GungHo's Nakamura Toru kanshuu Indo-shiki Keisan Drill (Indian Style Calculation Drills Supervised by Toru Nakamura) improves calculation speed and skills with special techniques and shortcuts. You may be asking yourself (or us, or no one in particular): How is this Indian style? What does India hav...
Posted on Jan 27th 2015 8:15AM
Posted on Jan 26th 2015 11:00AM
Posted on Jan 26th 2015 10:00AM