It is 385.
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.
what is 10 squared DOES NOT equal what?
100
The answer is 385
10
It is 155 greater.
The first ten positive numbers total 55.
It is 10*(10+1)/2 = 55