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...
Posted on Aug 31st 2014 2:36PM
Posted on Aug 30th 2014 10:30PM
Posted on Aug 30th 2014 1:30PM