What is the sum of whole numbers 1 to 50?

The sum of whole numbers from 1 to 50 can be calculated using the formula for the sum of an arithmetic series: ( S = \frac{n(n + 1)}{2} ), where ( n ) is the last number in the series. Here, ( n = 50 ), so the sum is ( S = \frac{50(50 + 1)}{2} = \frac{50 \times 51}{2} = 1275 ). Therefore, the sum of whole numbers from 1 to 50 is 1,275.