Hey Jasmine812!
The Incas used khipu, the system of recording numbers by tying knots on strings! The numbers were indicated by knot type and position on the cord.
I hope this helps!
Answer:
Guerilla Warfare and Surprise Attacks
Explanation:
The colonists used surprise attacks that often startled the British, and they were able to surprise the British by hiding behind trees and other obstacles and using guerilla warfare.
Well they invented the abacus and the wheel
