Mental Arithmetic + Soroban
Mental arithmetic. Addition and subtraction on the soroban eBooks & eLearning
Posted by lucky_aut at Sept. 27, 2020
Mental arithmetic. Addition and subtraction on the soroban
Duration: 54m | .MP4 720x1280, 30 fps(r) | AAC, 44100 Hz, 2ch | 1.17 GB
Genre: eLearning | Language: English
Duration: 54m | .MP4 720x1280, 30 fps(r) | AAC, 44100 Hz, 2ch | 1.17 GB
Genre: eLearning | Language: English
The first block of the course on mental arithmetic for teachers.