UMA Abacus

UMA Mental Arithmetic(大成心算) is a profession dual-hand abacus mental arithmetic institute headquartered in Singapore. We developed the innovative phone/tablet based digital abacus to help students to learn faster and better. With our break-through methodology, almost all of the students can master the skills of dual-hand abacus successfully. We integrated the mechanisms of dual-hand abacus into the phone and tablet devices which makes learning easy and fun. To install for all platforms, please navigate to http://uma.sg/apps to install the version compatible with your devices. To Join UMA, call use +65-67596978 or email us at zhushuihua@yahoo.com. Our Address: Block 845 Yishun Street 81 #02-180 S760845 Our website: http://www.uma.sg