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015-S1-2

2. Ancient Mayan civilization used a base-twenty number system as
shown below.

0 12 3 4 56 78 9

10 11 12 13 14 15 16 17 18 19

20 21 22 23 24 25 26 27 28 29

a. Fill in the blank.

17
b. Express the following number as an ancient Mayan numeral.

20 21 22 23

37
   73   74   75   76   77   78   79   80   81   82   83