D. Answer the following questions.
1. What do you understand by abacus? Why do you think it is an important
calculating device?
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Explanation:The abacus, also called a counting frame. We can't imagine counting without numbers, but there was a time when no written numbers. ... This simple calculating device helped to count large numbers and use of both parts of brain, thus helping a child from converting from intelligent to genius
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Abacus is a frame containing wires with small balls that move along them. It is used for counting.
The abacus, also called a counting frame. We can't imagine counting without numbers, but there was a time when no written numbers. ... This simple calculating device helped to count large numbers and use of both parts of brain, thus helping a child from converting from intelligent to genius.
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