What is the sum of first 100 odd numbers. Find the sum of consecutive odd numbers 51 53 55 199. The sum of all the whole numbers from xto yis equal to x y x y2 if x y is an odd number x y -1 x-y2 1 if x y is an even number.
The square root of 9 9 3 so three digits were added.
Now the set 3579101 requires us to consider 3 to 101 not 1 - 100. First 100 odd numbers means 1 3 5 7 - 199 so here n 100 100 2 10000. If 2n 1 is an odd integer 2n 3 and 2n 5 will be the next two odd consecutive integers. 801 802 - 202 201 81 40 - 10 21 3240 - 210.