2+4+6+8 = 20
They will always add up to another even number.
No even numbers add up to 9. The sum of even numbers is always an even number.
The answer to what is the sum of the first positive even numbers is 930. It doesn't mean that you add all the even numbers up until you reach the number 30. In fact, since you have to get the sum of the even numbers, you have to add all even numbers until you get to the number 60.
None. If you add two even numbers, you'll end up with another even number.
An odd number of odd numbers can not add up to an even number. There fore any 9 (odd) odd numbers can not add up to 50 (even).
No sum of any even numbers can add up to an odd number.
103
No three odd numbers can add up to an even number.
None. Any two odd numbers add up to an even number.
288. All multiples of 9 will have digits that add to a multiple of 9. To get a multiple of 9 to be all even, you need to get them to add to 18, since no set of even numbers will add up to 9. 288 is the lowest multiple of 9 to be able to add to 18. ■
Answer: The even numbers are 62, 64, 66, and 68
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