Operation that associates with every ordered pair of numbers (

*x*,*y*), called the*terms*of the subtraction, a new number (*x*−*y*) called the difference of the two terms.### Examples

- 5.6 – 3.2 = 2.4
- 5π – 3π = 2π
- 5\(sqrt{2}\) – 2\(sqrt{2}\) = 3\(sqrt{2}\)