How to Add every other number in a range in Microsoft Excel

New to Microsoft Excel? Looking for a tip? How about a tip so mind-blowingly useful as to qualify as a magic trick? You're in luck. In this MS Excel tutorial from ExcelIsFun, the 377th installment in their series of digital spreadsheet magic tricks, you'll learn how to add every other number with the SUMPRODUCT, MOD and ROW functions in one formula.