주산N암산 (기초1)

Publishing and production of Hanbit Edu Co., Ltd.- Through the main and mental arithmetic, It is a learning method that can increase the mathematical effect and excellent effect on brain development. Anyone can easily learn. Focusing on paper textbooks currently published and sold by the head office, In addition to lectures on various animated videos, various learning programs and systems are applied to the e-book, which allows students to directly learn from various electronic devices such as smartphones, tablets, and tablet PCs. 1. Book Introduction First three basic textbooks and Add and subtract (add and subtract) / flash cancer and multiply / divide (multiply) It is designed to practice courses from level 10 to level 10 and to take the qualification test for each grade. 2. Basic 1 textbooks are available free of charge. Seeing is believing If you find it helpful and helpful, Give many people around you a chance to receive the basic textbook 1 for free. I hope you will find a lot of help and achievements in Jusan and Amsan education. 3. How to use electronic teaching materials You can select the parts you need and touch them, and slide the page to the left or right. The mobile abacus shown in the electronic textbook can be used with the thumb and forefinger in the same way as the actual abacus. For learning and merchant inquiries, Hanbit Edu Co., Ltd.☎1588-8648 / 061 721-3507 Contact us Company Name: Hanbit Edu Co., Ltd. Representative: Park Hyun-jong Email: spd15888648@hanmail.net Address: 1F, 25, Yeonhyang Beonyeong 1-gil, Suncheon-si, Jeonnam Main phone: ☎ 1588-8648 Online Sales Report: 2010-Jeonnam Suncheon-00186