Comment a quick way to do this...

When faced with adding a series of consecutive odd numbers such as 1+3+5+7+9+11+13, it can seem time-consuming to add each number individually. However, there’s a handy shortcut based on a well-known property in mathematics: the sum of the first n odd numbers equals n squared. In this case, you have 7 odd numbers starting from 1. Instead of adding them one after another: 1 + 3 + 5 + 7 + 9 + 11 + 13 You can identify that because these are the first 7 odd numbers, the sum is simply: 7 × 7 = 49 This technique is not only quick but also intuitive once you understand the pattern. I have found that sharing this trick with students helps them solve similar problems rapidly and with greater confidence during exams or quizzes. This approach also fosters a deeper appreciation for number patterns and mathematics’ elegant simplicity. When tackling such brainteasers or riddles, leveraging these shortcuts can save time and make problem-solving more enjoyable. If you’re interested in exploring more tricks or teaching techniques related to math reasoning and learning, experimenting with other sequences and their formulas could enhance your math skills effectively. For example, the sum of even numbers or arithmetic sequences can be simplified similarly with corresponding formulas.