The sum of the first 10 even numbers is 110.
The sum of the first 10 odd whole numbers is 100.
The sum of the first 10 counting numbers (1-10) is 51.
The sum of the first 10 natural numbers is 51, with an average of 5.1
The sum of the first five whole numbers is 10.
The answer is 385
100
10
what is 10 squared DOES NOT equal what?
The first ten positive numbers total 55.
It is 155 greater.
It is 10*(10+1)/2 = 55