世界上心算完成10道任意3位数相乘题速度最快——张殿义
世界上心算完成10道任意3位数相乘题速度最快——张殿义
证书编号：17350-1802-01
颁证日期：2018年5月21日
中国黑龙江省富锦市张殿义先生于2018年5月21日在建三江农垦小区进行现场数字心算表演，心算完成10道任意3位数相乘题，共用时2 分23秒，准确率为百分之百 ，创世界纪录协会“世界上心算完成10道任意3位数相乘题速度最快”世界纪录。
The person who fastest finished ten times of any triple digit multiplications by mental calculation in the world ---- Mr. Zhang Dianyi
On May 21, 2018, in JianSanJiang Farming Community under construction, Mr. Zhang Dianyi from Fujin City, Heilongjiang Province, China, performed metal calculation on site to totally finish ten times of any triple digit multiplications by mental calculation. With 2 minutes and 23 seconds used for each multiplication averagely and the accuracy rate of 100&, this set the world record granted by the World Record Association for being the person who fastest finished ten times of any triple digit multiplications by mental calculation in the world.
