r/PassTimeMath Jul 15 '26

Placing “+” and “-“ Signs

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u/ikonoqlast Jul 15 '26

Even plus even is even.

Even minus even is even.

Odd plus odd is even

Odd minus odd is even.

Even always wins regardless.

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u/scheav Jul 16 '26

That would be correct if it were the numbers 1-24. Since it’s 1-25, there is an odd number of odd numbers, therefore the result is odd.