What type of operation is performed to find the sum of two or more quantities?

The operation performed to find the sum of two or more quantities is addition. When you add, you combine two or more numbers to get a total or sum. For instance, if you have 3 apples and you add 2 more apples, you perform the addition operation (3 + 2), resulting in a total of 5 apples.

Addition is fundamental in mathematics as it helps in understanding how quantities relate to one another, lays the groundwork for more complex calculations, and is essential in daily activities involving counting and combining items. Understanding this concept early on is crucial for students as they progress through more advanced mathematical topics.