Classify physical quantities into scalars or vectors. In National 5 Physics learn how add two vectors to find their resultant.

Combining Vectors Graphically: Students learn to combine component vectors graphically to produce resultants and use the head-to-tail method to do a vector analysis of a route between rooms.

And if we wanted to add or subtract two vectors, that's easy enough -- we just separate them each into their component parts and add or subtract each component separately.