The sum of the first 50 whole numbers is 1,225.
the sum of first 50 consecutive odd numbers is 9801
sum of n natural number is n(n+1)/2 first 50 number sum is 50(50+1)/2 = 1275
Sum of 1st n even numbers: count*average = n * (2 + 2*n)/2 = n * (n+1) Sum = 50 * (2+100)/2 = 50*51 = 2550
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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 sum of the first 50 natural numbers is 1,251.
the sum of first 50 consecutive odd numbers is 9801
sum of n natural number is n(n+1)/2 first 50 number sum is 50(50+1)/2 = 1275
of all the things i got is 2550
2500
counting number between 50 and 75
The formula is: S_n = (n(n+1))/2 where S is the sum and n is the amount of numbers (starting at 1). So for 100: S_100 = (100(101))/2 = 50(101) = 5050 Alternatively, you could group 0+100 (0 isn't a counting number, just a placeholder), 1+99, 2+98, ..., 49+51, 50. You get 50 groups of 100 and 1 of 50. 50(100) + 50 = 5050. I think this is what Gauss did.
The sum of the composite numbers between 1 and 50 is 936.
Sum of 1st n even numbers: count*average = n * (2 + 2*n)/2 = n * (n+1) Sum = 50 * (2+100)/2 = 50*51 = 2550