# ANTH IISR Ancient Mara Calendrics* Take - Home Quiz # 1 : 40 points DUE Tuesday February 14 ^ in class . Please be sure to include your name and SID...

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ANTH IISR Ancient Mara Calendrics*Take - Home Quiz # 1 : 40 pointsDUE Tuesday February 14 ^ in class . Please be sure to include your name and SID in theanswer sheet .Part 1 : The Vicesimal ( Base 20) Numbering System*The ancient Maya developed the concept of zero . had a base - 20 computational system , and wereable to do very complex mathematical calculations . Before using the computer programs toConvert some of the dates . let's practice using Maya math to learn how the Maya calendar systemworks .The Arabic number system we use today has 10 digits : 0. 1. 2. 3. 4, 5. 6. 7. 8, and 9. If wewant to write a number greater than '9 , we use combinations of these digits placed in aparticular order . The order gives value to the numbers in multiples of 10 . This is calledplace notation . For instance , 328 means 3 units of 100's , 2 units of 10's , and & units of 15 .The Maya also had a system based on place value and zero, but with one major difference .Their system is base 20 . The Maya wrote the numbers from 1 to 19 using bars and dots ; adot symbolizes units of I , a bar has the value of a unit of 5 , and a shell symbolizes O. Shownthis page are the numbers from 0 to 19 .To Express larger numbers , the Maya used the same kind of place notation as we do .However , in a base - 20 system , each place is based on a multiple of 20 . Thus , the number*3 2 8 in a base - 20 system represents 3 times a unit of 400 [ 20 x 201 . plus 2 times a unit oftwenty , plus & times a unit of one . The base - 20 number 328 represents 124 8 if written*using a decimal system .HERE ARE SOME SAMPLES OF MAYA NUMBERSnumber of 10 :`GID. .number of Is`.decimal & paton*471.12

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