Final answer:
The Babylonians developed the decimal system and the sexagesimal system.
Step-by-step explanation:
The Babylonians developed:
- The decimal system
- The sexagesimal system
The Babylonians were renowned for their advancements in mathematics. They used the decimal system for everyday calculations, which is a base-10 system. They also developed the sexagesimal system, which is a base-60 system used for measuring time and angles. These contributions laid the foundation for modern mathematics.