Final answer:
Britain gained the territory west of the Mississippi River, while Spain gained Florida and the territory east of the Mississippi River after the signing of the Peace of Paris Treaty in 1763
Step-by-step explanation:
After the signing of the Peace of Paris Treaty in 1763, Britain gained the territory west of the Mississippi River, while Spain gained Florida and the territory east of the Mississippi River. Cuba remained under the control of Spain.
Learn more about territories gained by Britain and Spain after the Peace of Paris Treaty in 1763