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مقارنة بين المعداد الهندي
والمعداد القديم

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Indian Abacus for student.png

العداد القديم

The value positions and non-value positions are not clearly defined and hence the accuracy suffers. Stress results due to the deficiency.

العداد الهندي

The value positions and non-value positions are clearly defined through colour / no colour images. Hence the accuracy at the maximum speed of calculation is possible.

Old Abacus.jpeg
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