Thinking Mathematically (6th Edition)

Published by Pearson
ISBN 10: 0321867327
ISBN 13: 978-0-32186-732-2

Chapter 4 - Number Representation and Calculation - 4.4 Looking Back at Early Numeration Systems - Exercise Set 4.4 - Page 242: 67


The year when America declared Independence is \[1776\]

Work Step by Step

The Roman Numeral written along the base of the pyramid at the back of US one dollar is MDCCLXXVI Converting MDCCLXXVI to Hindu Arabic Numeral, we get \[\begin{align} & 1000+500+100+100+50+10+10+5+1=1000+700+70+6 \\ & =1776 \end{align}\] Which is the year when America declared Independence. After Observing and calculating the back of US one dollar, we find the year \[1776\] written in Roman Numerals along the base of the pyramid
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