0
1+2+3+4+5+6+7+8+9+11+12+13+14+15=120
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Earn +20 ptsQ: What is the sum of the first fifteen counting numbers?
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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 50 counting numbers?
The sum of the first 50 counting numbers, excluding zero, is 1,251.
What is the sum of the first 500 odd counting numbers?
The sum of the first 500 odd counting numbers is 250,000.
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 first 10 counting numbers?
The sum of the first 10 counting numbers (1-10) is 51.
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