25.5
50 of them.
That's the same as the average of the extremes, in other words, (1+50)/2.
The sum of the first 50 odd numbers is 2,500.
The sum of the first 50 even numbers is 2,550.
The sum of the first 50 natural numbers is 1,251.
25.5
50 of them.
sum of n natural number is n(n+1)/2 first 50 number sum is 50(50+1)/2 = 1275
That's the same as the average of the extremes, in other words, (1+50)/2.
Inclusively (counting 1 and 50) there are 50. Exclusively there are 48.
Draw a flowchart to find the sum of first 50 natural numbers.
The sum of the first 50 whole numbers is 1,225.
The sum of the first 50 odd numbers is 2,500.
The sum of the first 50 even numbers is 2,550.
The first 100 odd natural numbers are the number 1-201, ignoring all even numbers. If you think about this for a moment, you realize that : 1+201 = 202 3+199 = 202 5+197 = 202 etc. With this, you can pair up all of your numbers leaving you with 50 pairs, all equaling 202. Ergo: 50*202 = 10100 is your sum.
2520 is the smallest multiple of of first ten natural numbers.