Question

some body know abacus??​

Answer 1

Answer:

yes yes yes yes yes yes yes yes yes yes yes yes yes yes yes yes yes yes yes yes yes yes yes yes yes yes yes yes yes yes yes yes yes yes yes yes yes yes yes yes yes yes yes yes yes yes yes yes yes yes yes yes

Answer 2

Answer:

A frame containg wire with small balls that move along with. it is used for counting

Explanation:

PLEASE MARK AS BRAINLY