Μayan numbers system
Mayan Numbers

The Maya used a number system based on 20 (we use a number system based on 10). A base-20 number system is called a vigesimal system. The Maya wrote numbers using combinations of dots and bars. A dot represented one. A bar represented 5. For every five numbers, they added an additional bar. The symbol for zero looked like a clam shell. Study the table below of how the Maya wrote numbers