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To find the sum of all odd numbers from 1 to 499, we can use the formula for the sum of an arithmetic series. The formula is n/2 * (first term + last term), where n is the number of terms. In this case, there are 250 odd numbers from 1 to 499. So, the sum would be 250/2 * (1 + 499) = 125 * 500 = 62,500.
odd because the 5 in the number is odd
The sum of two odd numbers is always even; the sum of three odd numbers is always odd; the sum of four odd numbers is always even; the sum of five odd numbers is always odd; etc
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