After the French and Indian war, the Treaty of Paris draw lines of British land and french land. The French lost some of their holdings, while Britain gained some. The picture should help.
The French and Indian War which is also known as Seven Years war ended with the Treaty of Paris in 1763. As per the terms of the treaty France gave up all of its territories in North America and Britain gained all the French territories east of the Mississippi river, in return of Florida Britain gave Cuba to Spain. Although the British gained territories in the North America the war was expensive and they imposed taxis on the colonialists and it led to colonial rebellion and developed into full scale war of independence.