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Maya Mathematics
Instead of ten digits like we have today, the Maya used a base number of 20. (Base 20 is vigesimal.) They also used a system of bar and dot as "shorthand" for counting. A dot stood for one and a bar stood for five.In the following table, you can see how this works.
0 1 2 3 4
5 6 7 8 9
10 11 12 13 14
15 16 17 18 19Because the base of the number system was 20, larger numbers were written down in powers of 20. We do that in our decimal system too: for example 32 is 3*10+2. In the Maya system, this would be 1*20+12, because they used 20 as base.
Numbers were written from bottom to top. Below you can see how the number 32 was written:
20's (1)1's (12)It was very easy to add and subtract using this number system, but they did not use fractions. Here's an example of a simple addition:
8000's 400's 20's + = 1's 9449 + 10425 = 19874
Instead of ten digits like we have today, the Maya used a base number of 20. (Base 20 is vigesimal.) They also used a system of bar and dot as "shorthand" for counting. A dot stood for one and a bar stood for five.In the following table, you can see how this works.
0 1 2 3 4
5 6 7 8 9
10 11 12 13 14
15 16 17 18 19Because the base of the number system was 20, larger numbers were written down in powers of 20. We do that in our decimal system too: for example 32 is 3*10+2. In the Maya system, this would be 1*20+12, because they used 20 as base.
Numbers were written from bottom to top. Below you can see how the number 32 was written:
20's (1)1's (12)It was very easy to add and subtract using this number system, but they did not use fractions. Here's an example of a simple addition:
8000's 400's 20's + = 1's 9449 + 10425 = 19874
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