Algebraic phrases to expressions using sum

The video tutorial explains how to interpret a math problem involving the sum of a number Y and 8.5. It begins by introducing the problem, then delves into the concept of addition, emphasizing that the result of adding two numbers is called the sum. The instructor then demonstrates how to translate the problem into an equation, Y + 8.5, highlighting the process of identifying and writing the sum in mathematical terms.

How would you represent the sum of Y and 8.5 mathematically?

Why is it important to identify the numbers involved in an addition problem?