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Q: What is the sum of the first 500 odd counting numbers?

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The sum of the first 500 odd numbers is 250,000.

None of them. All counting numbers are either odd or even.

The sum of the first 5,000 odd numbers 25,000,000.

No.

Their sum is 10000.

None. All counting numbers are even or odd.

The sum of all odd numbers, up to the odd number (2n-1) is n^2. So the sum of the first 1000 or 10^3 odd positive numbers is (10^3)^2=10^6 Now divide by 10^3 or 1000 since we have 1000 numbers so we have 10^6/10^3=1000 The mean of the first 1000 positive odd numbers is 1000 If you ask the mean of the odd numbers between, 1 and 1000, that is another problem, since there are 500 of them, the answer would be 500^2/500=500 Think of the mean of the odd numbers between 1 and 10, there are 5 of them and there sum is 25 so the mean is 25/5 or 5 **** in general, the arithmetic mean of the first n odd numbers is n^2/n or n. So that is why the number is 1000.

1, 3, 5, 7, 9 counting by twos to 99 are the odd numbers. 2, 4, 6, 8, 10 counting by twos to 100 are the even numbers.

Any product of two or more odd numbers that are larger than 1. For example, 33 = 3*11 is odd and composite.

450... There are 500 odd numbers from 000 to 999 inclusive. From 000 to 099, there are 50 odd numbers. 500 - 50 = 450.

1 + 3 + 5 + .... + 995 + 997 + 999 = 250000

250 of them.

All numbers are either odd or even, none are both, so less than 30 there are 29 counting numbers that are either odd or even but not both. (Assuming you mean starting to count with 1.)

4999 (not counting 1).

The sum of the first 600 odd numbers is 360,000.

The sum of the first 15 odd numbers is 225.

The sum of the first 8,000 odd numbers 64,000,000.

The sum of the first 1,000 odd numbers is 1,000,000.

The sum of the first 50 odd numbers is 2,500.

The sum of the first nine odd numbers is 81.

The sum of the first 13 odd numbers is 169.

The sum of the first 153 odd numbers is 23,409.

The sum of the first 300 odd numbers is 90,000

The sum of the first 40 odd numbers is 1,600.

1,3,5 and 7The first four odd numbers are 1, 3, 5 and 7. Odd numbers are not divisible by two.