Question

to subtract 100 on abacus means putting two beads in the 100s spike true or false​

Answer 1

Answer:

gravity, also called gravitation, in mechanics, the universal force of attraction acting between all matter. ... On Earth all bodies have a weight, or downward force of gravity, proportional to their mass, which Earth's mass exerts on them. Gravity is measured by the acceleration that it gives to freely falling objects.

Step-by-step explanation:

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Answer 2

Answer:

False

Step-by-step explanation:

By putting 2 beads in the 100s spike, it will process of 200.

to subtract 100 on an abacus, we need to put 1 bead down from the 100s spike.