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Well, honey, the sum of counting numbers from 1 to 20 is 210. You add up 1 + 2 + 3... all the way to 20 and you get your answer. So, go ahead and impress your friends with your newfound math knowledge.

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BettyBot

1w ago
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Wiki User

7y ago

The sum of the numbers from 1 to 20 inclusive is 220.

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Q: What is the sum of counting numbers from 1 to 20?
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Related questions

What is the sum of the first six counting numbers?

The sum of the first six counting numbers (1-6) is 19.


What is the sum of first 10 counting numbers?

The sum of the first 10 counting numbers (1-10) is 51.


What is the sum the first 100 counting number?

The sum of the first 100 counting numbers (1-100) is 5,001.


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 the first 500 couting numbers?

The sum of the first 500 counting numbers (1-500) is 125,001.


What is the sum of the first twenty counting numbers?

20*(20+1)/2 = 210 If you want to see how this works, or even the beauty in numbers, you can do so in MS Excel. In cell A1 put "=ROW()" B1: "=SUM(A$1:A1)" C1: "B1/A1". Then, select and copy those three cells. Paste the content in any number of rows down in those three columns. Be sure to note the following patterns: Every 20 numbers, the one's digit repeats itself in the sum column (B column), The sum of the first 10 numbers is 55, the first 100 is 5050, 1000 is 500500.


What is the sum of the counting numbers from 1-104?

105


Four counting numbers that's have an odd sum?

1, 2, 3, and 5


What is the sum of the first three squared numbers?

I assume you mean the first three "counting" (ordinal) numbers, which are 1, 2, and 3. The sum is therefore 1 + 4 + 9 = 14.


The sum of two numbers is 21 The difference of the two numbers is19 What are the two numbers?

20 and 1. 20 + 1 = 21 20 - 1 = 19


How many counting numbers have four distinct nonzero digits such that the sum of the four digits is 10?

1,2,3,4 1+2+3+4=10 4 times 3 times 2 times 1 =24 24 counting numbers


How many square number between 1 to 20?

There are (not counting 1) three square numbers between 1 and 20.