9788131903070
467978
https://www.siyasalkitap.com/the-abacus-a-pocket-computer
The Abacus A Pocket Computer
22.50
An abacus, also called as Counting Frame, is a calculating tool for performing arithmetical processes. It is as fast in some people's hand as a calculator. It is often constructed as wooden frame with beads sliding on. This title contains a book & an Abacus.
An abacus, also called as Counting Frame, is a calculating tool for performing arithmetical processes. It is as fast in some people's hand as a calculator. It is often constructed as wooden frame with beads sliding on. This title contains a book & an Abacus.
Yorum yaz
Bu kitabı henüz kimse eleştirmemiş.