Title: How to Add a Sequence of Consecutive Odd Numbers URL Source: https://freemwiki.com/index.php?oldid=8004&title=How_to_Add_a_Sequence_of_Consecutive_Odd_Numbers Markdown Content: (diff) ← Older revision | Latest revision (diff) | Newer revision → (diff) To add a sequence of consecutive odd numbers, you can use the formula: Sum = n^2 where "n" is the number of terms in the sequence. For example, let's say you want to add the first 5 consecutive odd numbers, starting from 1. The first 5 consecutive odd numbers are: 1, 3, 5, 7, 9 To find the sum of these numbers, we can use the formula above: n = 5 Sum = 5^2 = 25 Therefore, the sum of the first 5 consecutive odd numbers is 25. Another way to add a sequence of consecutive odd numbers is to use the formula: Sum = n*(2a + (n-1)d)/2 where "a" is the first term in the sequence, "d" is the common difference between consecutive terms (which is 2 for odd numbers), and "n" is the number of terms in the sequence. For example, if you want to add the first 7 consecutive odd numbers, starting from 3: The first 7 consecutive odd numbers are: 3, 5, 7, 9, 11, 13, 15 a = 3 d = 2 n = 7 Sum = 7*(2*3 + (7-1)*2)/2 = 7*(6+12)/2 = 7*18/2 = 63 Therefore, the sum of the first 7 consecutive odd numbers starting from 3 is 63.