The sum of whole numbers 1 through 30 is 465.
201
The sum of all the odd numbers from 1 through 100 is 10,000
465
100
The sum of the numbers 1 through 27 is 378.
The sum of the numbers from 1 through 100 is 5,050.
The sum of all the numbers 1 through 200 is 20,100.
The sum of the whole numbers 1 through 1,000 is 500,500.
The sum of all odd numbers 1 through 99 is 9,801.
The sum of whole numbers 1 through 30 is 465.
201
The sum of all the odd numbers from 1 through 100 is 10,000
465
28
2,850
To sum numbers 1 through N, use this formula: (1 + N)*N/2, so (1+35)*35/2 = 630.