Lukegao1
创建页面，内容为“To add 5 consecutive numbers quickly, you can use the formula for the sum of an arithmetic series: sum = (n/2) x (first number + last number) where n is the number of terms in the series, and the first and last numbers are the first and last terms in the series. So, to add 5 consecutive numbers quickly, you can simply use this formula by plugging in the values: sum = (5/2) x (first number + last number) Since we are adding 5 consecutive numbers, the first…”