Math glossary
Sum
The answer when you add numbers.
The numbers you add are called addends. Their total is the sum.
Example: In 6 + 9 = 15, the sum is 15.
Lessons, worksheets, practice and tools on this: Addition and subtraction.
Related words
- Difference: The answer when you subtract one number from another.
- Addend: One of the numbers you add together.