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(1+15)*15/2
first plus last times number of numbers then divide by two
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∙ 14y ago
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What is the sum of the first fifteen odd numbers?
The sum of the first 15 odd numbers is 225.
What is the sum of the first five whole numbers?
The sum of the first five whole numbers is 10.
What is the sum of the first 5 counting numbers?
1+1+1+1+1+=5 * * * * * The question did not ask for the sum of the first counting number five times! The sum of the first 5 counting numbers is 1+2+3+4+5 = 15. Such sums are known as triangular numbers.
What is the sum of three numbers that equal 15?
If you mean the numbers are all 15 then the answer is 45 otherwise the answer is the 15 that you already stated in your question to be the sum.
What is the sum of the first 50 numbers?
The sum of the first 50 whole numbers is 1,225.
What is the sum of the first 15 prime numbers?
the sum of the first 15 prime numbers is 328 .
What is the sum of the first fifteen odd numbers?
The sum of the first 15 odd numbers is 225.
What is the sum of the first 5 numbers?
The sum of the first 5 numbers is 15. 1+2+3+4+5=15
What is the sum of the first five whole numbers?
The sum of the first five whole numbers is 10.
What is the sum of the first 15 positive even numbers?
The sum of the first 15 positive even numbers is 240. (Simply square 15, then add 15 to the result: 15 x 15 = 225. 225 + 15 = 240).
What is the sum of the first 15 whole numbers?
The sum of the smallest 15 positive integers is 120. The sum of the smallest 15 negative integers is -120.
How. to. write an. algorthim. to find the. sum of. first. 15 natural. numbers?
Write an. Algorthim. To. Find the. Sum. Of. First15 natural. Numbers
What is the sum of the first 5 counting numbers?
1+1+1+1+1+=5 * * * * * The question did not ask for the sum of the first counting number five times! The sum of the first 5 counting numbers is 1+2+3+4+5 = 15. Such sums are known as triangular numbers.
What is the sum of three numbers that equal 15?
If you mean the numbers are all 15 then the answer is 45 otherwise the answer is the 15 that you already stated in your question to be the sum.
What is the sum of the first 50 numbers?
The sum of the first 50 whole numbers is 1,225.
Sum of first 1000 numbers?
The sum of the first 1,000 whole numbers is 499,500.
What is sum of first 40 numbers?
The sum of the first 40 whole numbers is 780.
