【侯老师线上珠心算基础班听心算】（五的组合~练习一）

Teacher Hau with Carol Ng, Hoo Xiao Hui, Angeline Lee, Soh Eik Hang, Hannah, Cayden, Athena Seah, Koh Yu Xin, Chua Jin Xuan, Chua Jin Ni, Yap Ru Min (Seremban).