The sum of any two integers will always be an integer, i.e. We can say that rational numbers are closed under addition, subtraction and multiplication.Closure property is the property that deals with the operations and their results within a certain set of numbers. Closure property is a mathematical principle describing the way in which functions may be expanded to include one or more new variables. The closure property states that for any two rational numbers a and b, a – b is also a rational number. Closure property of addition states that addition of any 2 numbers of same set will result in a number from same set. According to closure property, if two numbers belong to the same set and an operation is performed between them, then the result should be in the same set only. Use any one to complete the sign up. Closure property states that when a set of numbers is closed under any arithmetic operation such as addition, subtraction, multiplication, and division, The Bexar County Commissioners Court will meet on Tuesday, August 20, 2013 at a.m.