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The formula for the sum of an arithmetic sequence is ((first number) + (last number)) x (how many numbers) / 2, in this case, (1 + 100) x 100 / 2.

The formula for the sum of an arithmetic sequence is ((first number) + (last number)) x (how many numbers) / 2, in this case, (1 + 100) x 100 / 2.

The formula for the sum of an arithmetic sequence is ((first number) + (last number)) x (how many numbers) / 2, in this case, (1 + 100) x 100 / 2.

The formula for the sum of an arithmetic sequence is ((first number) + (last number)) x (how many numbers) / 2, in this case, (1 + 100) x 100 / 2.

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Q: How do you calculate the sum of all numbers from 1 through 100?

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The sum of all the odd numbers from 1 through 100 is 10,000

I wrote out all the factors of all the numbers from 1 to 100 and counted them.

Usually all the integers (counting numbers) from 1 to 100.Usually all the integers (counting numbers) from 1 to 100.Usually all the integers (counting numbers) from 1 to 100.Usually all the integers (counting numbers) from 1 to 100.

All of them are divisible by 1.

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The prime numbers from 75 through 100 are: 79, 83, 89, 97

Add them all together then divide the sum by 100 (move the decimal point two places to the left).

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90. all the numbers from 10 through 99

The sum of the first "n" numbers is equal to n(n+1)/2.

1+2+3+4+5+6+7+(8x9)=100

I suggest you use the formula for an arithmetic series to calculate that.

Gauss was a German mathematician who, as a child prodigy, was able to calculate the sum of all numbers from 1-100 in less then a minute.

The method know as The sieve of Eratosthenes is the easiest method. you simply write down all the numbers from 1 to 100 in rows of 10 and then you go through and you mark out all of the multiples of 2,3,4,5,6,7,8,9,10

List the numbers from 2 to 100. Rows of 10 work well. Cross out all the multiples of 2 that are greater than 2. This will be the rest of the even numbers. Go to the next number that isn't crossed out (3) and cross out all of its greater multiples. Proceed in this fashion. Next up will be 5. You can stop when you get to fifty. The numbers that aren't crossed out are prime.

List the numbers from 2 to 100. Rows of 10 work well. Cross out all the multiples of 2 that are greater than 2. This will be the rest of the even numbers. Go to the next number that isn't crossed out (3) and cross out all of its greater multiples. Proceed in this fashion. Next up will be 5. You can stop when you get to fifty. The numbers that aren't crossed out are prime.

101

All of the numbers from 1 to 100 are the factors in the set of numbers from 2 to 100.

No square number is a prime number, since it has the number you squared as a factor. There are several square numbers less than 100. Just calculate the squares of all numbers, starting with 1, until you reach or pass 100. Then stop.

The factors of all of the numbers from 1 to 100 are all of the numbers from 1 to 50.

The sum of the all prime numbers from 1 to 100 is 1,161

all of the square numbers up to 100 are: 1, 4, 9, 16, 25, 36, 49, 64, 81 and 100

100 times the mean, or 4783, because the mean is defined as the sum of all the numbers divided by the number of the numbers.

add up all the numbers then divide it by how many numbers there are

what is the ratio of multiples of 3 between 1 and 100 to all numbers between 1 and 100