The sum of 26 and 55 is 81.

Would you like more details or have any questions? Here are five related questions for further exploration:

1. What is the difference between 55 and 26?
2. What is the product of 26 and 55?
3. How would you represent 26 and 55 as a fraction and simplify it?
4. What is the average of 26 and 55?
5. Can you find the sum of 26, 55, and another number, say 100?

Tip: When adding numbers, align them vertically by place value for clarity!