What is the sum of 10 and 25?

To find the sum of 10 and 25, you simply perform the addition:

10 + 25 equals 35.

This means that the correct answer is 35. When adding two numbers, the result combines the value of both numbers. In this case, when you add 10 to 25, you are essentially increasing 25 by 10, which leads to a total of 35.

It's important to perform the arithmetic operation carefully to avoid arriving at incorrect sums that don’t align with the method of addition. This understanding solidifies the concept of summing whole numbers effectively.