Question

who was invented the abacus​

Answer 1

Answer:

Tim Cranmer invented the abacus.

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Explanation:

Answer 2

Answer:

Hi there

ur answer

Explanation:

Tim Cranmer

An adapted abacus, invented by Tim Cranmer, called a Cranmer abacus is still commonly used by individuals who are blind. A piece of soft fabric or rubber is placed behind the beads so that they do not move inadvertently. This keeps the beads in place while the users feel or manipulate them.

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