0
1+2=3
1+2+3=6
1+2+3+4=10
1+2+3+4+5=15
1+2+3+4+5+6=21
...etc...
1+2+......+24+25=325.
Another approach is:
Sum=(25+1)*25/2=325.
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∙ 14y ago
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Without adding find the sum of the whole numbers from 1 through 25?
(1+25)times25 then divided in half.13 times 25=325
What is the sum of all numbers from 1 to 25?
The sum of all integers between 1 and 25 is equal to (25 x (25 - 1))/2 = 325.
What is the sum of 1 through 250?
The sum of 1 through 250 is 31,375.
What is the sum of all numbers from 1 to 25 including in between?
There is a formula to calculate this sum. It is, S = ½n(n + 1) In this question, n = 25 so the sum of the numbers from 1-25 is, ½ x 25 x 26 = 325
A spinner has the numbers 10 20 30 40 and a number cube numbered 1 through 6 what is the probability of getting a sum greater than 25?
Pr(Sum > 25) = Pr(Spinner = 30 or 40 and Cube = 6) = Pr(Spinner = 30 or 40)*Pr(Cube = 6) = 2/4 * 1/6 = 1/2*1/6 = 1/12 or 8.33... %
How do you get the sum of the first 25 natural number?
(1 + 25) x 25/2 ie 425. The sum of the first n integers is (n + 1) x n/2
Without adding find the sum of the whole numbers from 1 through 25?
(1+25)times25 then divided in half.13 times 25=325
What is the sum of all numbers from 1 to 25?
The sum of all integers between 1 and 25 is equal to (25 x (25 - 1))/2 = 325.
What is the sum of 1 through 250?
The sum of 1 through 250 is 31,375.
If you add the integers from 1 through 50 what sum do you get?
I still remember my brother taught me this simple math.... First, add 1 with the last number. So, 50 + 1 = 51 Then divide the last number with 2. So, 50/2 = 25 So, 51 X 25 = 1275 Asraf
What is the sum of all numbers from 1 to 25 including in between?
There is a formula to calculate this sum. It is, S = ½n(n + 1) In this question, n = 25 so the sum of the numbers from 1-25 is, ½ x 25 x 26 = 325
Find the sum of the counting numbers from 1 to 25?
Sum of 1,2, ... , n is n*(n+1)/2 Here, n = 25 so sum = 25*26/2 = 325
A spinner has the numbers 10 20 30 40 and a number cube numbered 1 through 6 what is the probability of getting a sum greater than 25?
Pr(Sum > 25) = Pr(Spinner = 30 or 40 and Cube = 6) = Pr(Spinner = 30 or 40)*Pr(Cube = 6) = 2/4 * 1/6 = 1/2*1/6 = 1/12 or 8.33... %
What is more than 25?
-- The sum of 25 and any positive number. -- The difference of 25 and any negative number. -- The product of 25 and any positive number greater than '1'. -- The ratio of 25 to any positive number less than '1'. -- 25 raised to any positive power greater than '1'. -- 25 raised to any negative power less than '1'. -- The factorial of any number greater than 5.
How many prime number in 1 through 100?
25
What is the Sum of the numbers from 1 through 100?
The sum of the numbers from 1 through 100 is 5,050.
What is the sum of 1 through 1000?
The sum of the whole numbers 1 through 1,000 is 500,500.
