The most accurate statement that summarizes how the differences in military technology between the Spaniards and the Aztec and Inca affected their battles is:
"While the Indigenous forces would number in the thousands at times when battling the Europeans, they were still no match for the military prowess of the Spaniards."
This reflects the overall advantage that Spanish military technology, including gunpowder, horses, and advanced weaponry, provided them in battles against the numerically superior Indigenous forces.