Question

abacus model rod called​

Answer 1

The abacus essentially consists of a number of rows of movable beads or other objects, which represent digits. One of two numbers is set up, and the beads are manipulated to implement an operation involving a second number (e.g., addition), or rarely a square or cubic root.

Answer 2

Answer:

Frame (outer body it holds rods, bar and beads)

Bar (separates upper beads from lower beads)

Rods (to hold beads)

Beads (they are bi-conical in shape)

House points(reference points to start calculations)