The sum is the result you get when you add two or more numbers together.
A single number can be the sum of two or more other numbers when they are added together but cannot be expressed as you ask in your question.
Though you could ask "What numbers have the sum of 20?"
For instance 20 is the sum of (10 + 10), (5 + 15), (2 + 7 + 11) etc., but is not in itself a sum.
The sum of -5 and 20 is 15. The distance between -5 and 20 is 25. The sum of the numbers between -5 and 20 is 180. The sum of the numbers from -5 to 20 is 195.
The sum of the first 20 integers is 190.
4 and 5 have the sum of 9 and the product of 20.
The sum is 50+20 = 70
The integers 2 and 10 have a product of 20 and a sum of 12.
20 + 3 = 23
The sum of 20 and 110 is 130.
The sum of -5 and 20 is 15. The distance between -5 and 20 is 25. The sum of the numbers between -5 and 20 is 180. The sum of the numbers from -5 to 20 is 195.
There is no "sum of 20". To have a sum, you have to have at least 2 things to add together.
20
The sum of the first 20 integers is 190.
4 and 5 have the sum of 9 and the product of 20.
20, is the sum of 18 and 2.
the answer to 20 + 20 = 40
It is: 20+20 = 40
"sum" means what you get when you add them...
The sum of the squares of the first 20 natural numbers 1 to 20 is 2,870.