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HOW COUNTING BEGAN
PRACTICAL OPERATION OF THE TEN SYSTEM
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accuracy accurate added addition adopted advantages already answer appear base better calculation carried cent common COMPARE complete computation consider consideration contains convenient counting cubic decimal desirable divided division dozen duodecimal early eggs equal error exactly examine example existing expressed fact factors feet figures fingers five foot four fractions frequently given half hand idea important inches instance interest invention involved larger less logarithms mathematical means measure method metric system minute Monthly multiplication multiplication tables natural necessary number system numbers ending obvious original percentage perhaps possible practical present problem proposed quantity quarter question reason relation remains repeating represent result revolving number Roman rule seems seen simple single square suggested symbols tens tenths third tions twelve units weight whole zero