"Indian Calculation Drill: Magical Calculation Training for Everyone Who Has Graduated from Multiplication Tables" Manish Prabhune / Toru Nakamura / Katsuhisa Kagami Price: ¥880 #ManishPrabhune #ToruNakamura #KatsuhisaKagami #Books #Nature/Mathematics * No writing or markings are apparent. * Unused, but has been stored at home, so please understand before purchasing. Those seeking perfection, those who are sensitive, or those sensitive to smells should refrain from purchasing to avoid any issues.