Cách sử dụng
The word "sum" is used to refer to a total amount. For example, if you have three apples and someone gives you two more, then the sum of apples you have is five. The word "sum" can also be used in mathematical operations, such as addition. When you add two or more numbers together, you find the sum of those numbers. In everyday language, you might use "sum" in phrases such as "the sum of all parts" to mean the total amount of something. You might also use "sum up" to mean to provide a brief and concise summary of something. Overall, "sum" is a useful word for referring to totals and for performing simple mathematical calculations.