Where did Nanxiong learn abacus mental arithmetic?

Xiongdong Road, Nanxiong City, Shaoguan City, Guangdong Province. Little Yaya Education is a training and education chain sponsored by Guangzhou Little Yaya Training and Education Co., Ltd., and its courses include China calligraphy, literacy pinyin, abacus mental arithmetic and so on. Located in Xiongdong Road, Nanxiong City, Shaoguan City, Guangdong Province. Nanxiong City is a county-level city under the jurisdiction of Guangdong Province, People's Republic of China (PRC). It is hosted by Shaoguan City and located in the northeast of Guangdong Province, bordering Xinfeng County, Jiangxi Province in the east, quannan county County, Jiangxi Province in the southeast, Shixing County in the southwest, Renhua County in the northwest and Dayu County, Jiangxi Province in the north.