How Do You Add Five Consecutive Numbers Quickly?
The ability to add five consecutive numbers in your head quickly may not qualify you as the fastest mathematician, but it is sure to impress friends and family. It may even come in handy in your everyday life. Read on to learn how to add five consecutive numbers quickly. Have a friend choose any five consecutive numbers between 10 and 100. For our purposes, let us take the numbers 33, 34, 35, 36 and 37 as an example. Locate the middle number in the series. In this series, that number is 35. Multiply the number by 10. A quick way is simply to add a zero at the end of the number. In this case, 35 x 10 will give you 350. Divide the result by 2, (350/2), which gives you 175. This is the sum of the five numbers picked by your friend.