Adding consecutive numbers starting from 1

Again we come back with the new trick of math. In this method we will learn how to add consecutive numbers starting from 1 by a simple method.

Are you ready for it?

Say yes

For example you have found the sum of all the numbers from 1 to 9

I know that all you will do it by adding the starting number to the last number

1 + 9 = 10

2 + 8 = 10

3 + 7 = 10

4 + 6 = 10

And     5

Total is 10 +10 +10 +10 +5 = 45

But if you asked for find the sum of all numbers from 1 to 100 than you can’t do it so easily. Don’t vary I will tell you how to do it with easily

Rule: - Multiply the amount of numbers in the group by one more than their number and divide by 2

For example you are asked to find the sum of all number from 1 to 99. There are 99 integers in this series, one more than this series is 100

Thus

99*100 = 9900

Divide it by 2

9900/2 = 4950 answer

The sum of all numbers from 1 to 99 is therefore 4950.

Keep visiting for the new spicy tricks