0
1+2+3+4+5=15
But some say that zero is a number (see Related Links below), therefore 0+1+2+3+4=10
If course, -10 is also a number.
So if we are going to add the first five numbers, we need to know which number to start with! ... And some might argue that we always start with nothing!
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Earn +20 ptsQ: What do the first five numbers add to?
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Continue Learning about Math & Arithmetic
What do the first five odd numbers add up to?
25
What do the first five square numbers add up to?
55
Calculate the sum of the first five prime numbers?
The first five prime numbers are 2, 3, 5, 7, 11. The sum of these five numbers is 28.
What is the product of the first five number?
Assuming the first five numbers is meant to refer, not to the first five real numbers but to the first five positive integers, the answer is 1*2*3*4*5 = 120
How do you know that the mean of 1 2 3 4 5 does not equal 8?
You have to prove it by showing what the mean of the five numbers is. First, you add up the five numbers, which is equal to 15. Then, you divide the sum by 5, which is 3, and not 8.
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