How do the maya calendars show maya's knowledge of mathematics

In order to create the calendar, it involved much math to figure out what day it was and the time of day as well as when specific events occurred such as moon phases.

Also, the Mayans first created the calendar to know when they should farm their crops and work agriculturally.

answer; i believe the correct answer is (crops);

giant impact theory - the moon was formed from the collision between earth and another mars-sized body.

colliding planetesimals hypothesis - the moon was formed from the same cloud of material as earth.

capture hypothesis - the moon was locked into orbit by earths gravity as it was passing by it.

accretion hypothesis - the moon was formed from collisions and combining of planetesimals.

i think this is right, if not and you know better let me know.