Maya Mathematics, Maya Number System, Calendars Illustration

Maya Empire for Kids
Maya Mathematics
and Maya Calendars


NUMBERS: The Maya invented the concept of zero. This concept and understanding of mathematics was very advanced for its time. The Maya number system was based on 20. How do you think the ancient Mayas would have written the number 40? (Look at the number chart below, then look at the bottom of this page to check your answer.)

Maya Mathematics

CALENDAR: The Maya also invented an accurate calendar using their knowledge of astronomy and mathematics.

Living Maya Time

Maya Calendar (Smithsonian)

Maya Calendar

Maya Calendar Converter -
Convert a modern calendar date into a Maya calendar date

More Maya Inventions

Interactive: Mayas Q&A

Mayas for Kids

Answer: 40 would be two dots (20+20) over zero.