Dewey decimal system
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Decimal.
1. Roman numeral system does not follow the place value system like decimal system. 2. the numerals if written at left or right of a bigger numeral get subtracted or added, but in decimal system this type of confusion is not there. rks_21269@yahoo.com
Twenty-one in decimal notation is 21. In Roman numeral notation it is XXI.
Well, friend, the Roman numeral system is not a decimal system like our Arabic numerals. It uses letters like I, V, X, L, C, D, and M to represent numbers. Each letter has a specific value, and by combining them, you can represent different numbers. It's a beautiful and ancient way of counting that has its own unique charm.
Deci means ten. Our numeral system is based on the counting of tens.