0
its 5035
the summarian notation tells you that
(sum of all #from 0 to a number'N'
(sum of all #from 0 to N) = (n)+(n-1)+(n-2)+(n-3)+...+(2) +(1) or
(sum of all #from 0 to N) = (1)+ (2) + (3) + (4)+...+(n-1)+(n)
the two different sums are aligned by columns. now add the two colunms accordingly and you'll get
2x(sum of all #from 0 to N)=(n+1)+(n+1)+...+(n+1) (n+1)is added n times
so
2x(sum of all #from 0 to N) =n(n+1)
(sum of all #from 0 to N) =n(n+1)/2
so (sum of 5 to 100) = (sum of 0 to 100)- (sum of 0 to 5)
=100(101)/2 - 5(6)/2 = 5050 - 15 = 5035
Wiki User
∙ 12y ago
Add your answer:
Earn +20 pts
What is sum of the first 100 whole numbers?
It is instructive to note that you can rewrite 1+2+3+4....+99+100 as 1+100+2+99+3+98....+50+51 Then you can group each pair of numbers as (1+100)+(2+99)+(3+98)+...+(50+51) All of these couplets add up to 101, and there are 50 of them. Thus the sum of the first 100 whole numbers is 50x101. This can be calculated at 5,050.
What is the sum of all numbers up to 100?
5050 i think
What are three consecutive numbers that add up to 68?
There are no such whole numbers. The sum of three consecutive whole numbers must be a multiple of 3; as 68 is not a multiple of 3 (68 = 3 × 22 2/3) it cannot be the sum of three whole numbers.
How do you find the sum of the whole numbers 1 through 10?
Add them up.
How many pairs of whole numbers are there whose sum is 7?
3 pairs of whole numbers add up to 7: 1 +6, 2+5, 3+4 (0+7 also equals 7, but zero is not a whole number)
How many whole numbers are there upto 100?
Depending on how you look at it, there are either 99 or 100 whole numbers up to 100. If you mean up to and including 100, then the answer is 100 whole numbers, if not, then the answer is 99 whole numbers.
What is sum of the first 100 whole numbers?
It is instructive to note that you can rewrite 1+2+3+4....+99+100 as 1+100+2+99+3+98....+50+51 Then you can group each pair of numbers as (1+100)+(2+99)+(3+98)+...+(50+51) All of these couplets add up to 101, and there are 50 of them. Thus the sum of the first 100 whole numbers is 50x101. This can be calculated at 5,050.
What is the sum of all numbers up to 100?
5050 i think
What are four consecutive numbers that add up to 35?
There are no four consecutive whole numbers that add up to 35. The sum of two consecutive [whole] numbers is an even number plus an odd number which is an odd number. The sum of two consecutive numbers and the two next consecutive numbers is the sum of two odd numbers which is even, but 35 is odd, so no four consecutive whole numbers cannot add up to 35.
What are three consecutive numbers that add up to 68?
There are no such whole numbers. The sum of three consecutive whole numbers must be a multiple of 3; as 68 is not a multiple of 3 (68 = 3 × 22 2/3) it cannot be the sum of three whole numbers.
What five odd numbers add up to 100?
No 5 odd numbers add up to 100. The sum of any two odd numbers is even. The sum of any two even numbers is even. So the sum of any 4 odd numbers must be even. Take that and add an odd number and the sum must be odd. Therefore, the sum of any 5 odd numbers must be odd. 100 is even. In conclusion: The sum of any odd number of odd numbers is odd.
What are eight whole consecutive numbers that add up to 75?
There is no set of 8 consecutive whole numbers whose sum is 75.
How do you find the sum of the whole numbers 1 through 10?
Add them up.
When can the sum of two mixed numbers be a whole number?
2 mixed numbers can only be a whole when the 2 numerators add up to the number
What is 1 plus 2 plus 3 etc up to 100?
The sum of the numbers up to 100 is equal to (100 x 101)/2 = 5050
What two consecutive numbers add up to 60?
Consecutive whole numbers will have an odd sum. Consecutive odd numbers, or consecutive prime numbers, will be 29 and 31.
When is the sum of two decimals a whole number?
When the fractional parts, if any, of the two decimal numbers sum to 1.
