Ask Mr. Donn
about
Ancient China
Question:
What is an abacus?
Answer:
An abacus is a frame with string and beads that slide on the string. With an abacus, you can do most math problems very quickly. Ancient Chinese Abacus
Ask Mr. Donn
about
What is an abacus?
An abacus is a frame with string and beads that slide on the string. With an abacus, you can do most math problems very quickly. Ancient Chinese Abacus