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Can not be done! An odd number of odd numbers will ALWAYS add up to an odd number.

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Q: 7 odd numbers that add up to 30 without minus?

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Multiply two odd numbers Add an even and an odd Subtract an odd and an even

No three odd numbers can add up to an even number.

35

There is no way without playing silly games. Each of the numbers in the list is odd. The sum of five odd numbers must be odd and therefore, cannot be 50. There is no way without playing silly games. Each of the numbers in the list is odd. The sum of five odd numbers must be odd and therefore, cannot be 50. There is no way without playing silly games. Each of the numbers in the list is odd. The sum of five odd numbers must be odd and therefore, cannot be 50. There is no way without playing silly games. Each of the numbers in the list is odd. The sum of five odd numbers must be odd and therefore, cannot be 50.

even

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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).

35

37

Multiply two odd numbers Add an even and an odd Subtract an odd and an even

55

no

None. Any two odd numbers add up to an even number.

No 5 odd numbers add up to 100. The sum of any two odd numbers is even. The sum of any two even numbers is even. So the sum of any 4 odd numbers must be even. Take that and add an odd number and the sum must be odd. Therefore, the sum of any 5 odd numbers must be odd. 100 is even. In conclusion: The sum of any odd number of odd numbers is odd.

103

No three odd numbers can add up to an even number.

There are no such numbers. The sum of any three odd numbers must be odd. 112 is not.

list 1st 1 odd number, then add them. list 1st 2 odd numbers, then add them. list 1st 3 odd numbers, then add them. list 1st 4 odd numbers, then add them. look for a pattern. make a conjecture.

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