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1+1+1+1+1+=5
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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.
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Sum of the first 5 even numbers?
Counting 0 as a number, it's 20. Not counting 0, it's 30.
First sum of 1000 counting number?
The sum of the first 1,000 counting numbers (which excludes zero) is 500,001.
What are the first fifteen counting numbers in base nine?
They are 1, 2, 3, 4, 5, 6, 7, 8, 10, 11, 12, 13, 14, 15 and 16.
What is the sum of the first 100 even numbers the sum of the first 5 even numbers is 2 4 6 8 1030?
The sum of the first 100 even numbers is 10,100
What is the sum of all the first 100 even numbers?
The sum of all the first 100 even numbers is 10,100.
Sum of the first 5 even numbers?
Counting 0 as a number, it's 20. Not counting 0, it's 30.
First sum of 1000 counting number?
The sum of the first 1,000 counting numbers (which excludes zero) is 500,001.
What are the first fifteen counting numbers in base nine?
They are 1, 2, 3, 4, 5, 6, 7, 8, 10, 11, 12, 13, 14, 15 and 16.
What is the sum of the first one hundred counting number?
Here is a nice way to see and remember this. Look at the sum of the first 5 counting number Write them as 1,2,3,4,5 Now write them backward as 5,4,3,2,1 Place the second list under the first list and add the numbers in each column. Each sum is 6 and there are 5 sums. However, you counted the numbers twice since you wrote the list both ways. So the sum of the first 5 numbers is 5x6/2 In general the sum of the first n natural numbers is n(n+1)/2 So the sum of the first 100 numbers is 100x101/2=50x101=5050 This formula can also be proved by induction and several other ways.
Four counting numbers that's have an odd sum?
1, 2, 3, and 5
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 are the first eight counting numbers?
1, 2, 3, 4, 5, 6, 7, 8, I am counting to the first 8 numbers
What is the sum of the 1st prime numbers?
The sum of the first two prime numbers is 5.
What is the sum of the first 5 prime numbers?
The first five prime numbers are 2,3,5,7,11. The sum of the first five prime numbers is 28.The sum is: 2+3+5+7+11 = 28
What is the sum of the first 100 even numbers the sum of the first 5 even numbers is 2 4 6 8 1030?
The sum of the first 100 even numbers is 10,100
What is the sum of the first three odd numbers?
The first three odd numbers are 1, 3, and 5. Their sum is 1 + 3 + 5 = 9.
How are 4 and 5 related?
They are both counting numbers and 5 is the successor of 4.They are both counting numbers and 5 is the successor of 4.They are both counting numbers and 5 is the successor of 4.They are both counting numbers and 5 is the successor of 4.
