100
thousands
nine, ten and eleven. Three consecutive numbers that total thirty
38.5
The sum of the first 100 odd numbers (1 through 199) is 10000 (ten thou)
The first ten positive numbers total 55.
16,17,18,19,20,21,22,23,24,25.
2520 is the smallest multiple of of first ten natural numbers.
Add them up and divide that total by ten. 4, 6, 8, 9, 10, 12, 14, 15, 16, 18
3.141592653
Ordinary numbers
The average of the first ten prime numbers is 12.9.
The first ten happy numbers are: 1, 7, 10, 13, 19, 23, 28, 31, 32, 44
38.5
100
thousands
-55