How To Add Consecutive Integers From 1 To 100 9 Steps

Thus, your formula will look like this: S100=n(1+1002){\displaystyle S_{100}=n({\frac {1+100}{2}})}.

To quickly multiply a number by 100, move the decimal point two places to the right. [4] X Research source

So, the first group will have 50 numbers (1-50). The second group will also have 50 numbers (51-100).