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Just add the end numbers, so 3 + 5 + 4 + 7 = 19 which is odd.

Alternatively, ignore even numbers [such as 4], and two odd numbers [3 and 5] added always make an even number [8], which leaves and odd number [7] so the answer will be odd. Example; five hundred different numbers, where 483 are even and 17 are odd, then no matter what the actual 500 numbers are the answer will be odd, as there is an odd [17] quantity of odd numbers.

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8y ago
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9y ago

Remove all the even numbers from the list.Remove odd numbers in twos.


If you have a number left in the list, then the sum is odd. If you have none, the sum is even.

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Q: How can you determine whether the sum of several numbers such as 13 45 24 17 is even or odd without actually calculating the sum?
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"J" is not a math word, but there are several that beginwith 'j'.Mechanics tend to use the letter "j" instead of the imaginary unit "i", when calculating with complex numbers.


How can you determine whether the sum of several numbers such as 13 plus 45 plus 24 plus 17 is even or odd without actually calculating the sum?

Even plus even equals even. Odd plus odd equals odd. Odd plus even equals odd. 13 + 45 (odd plus odd) will be even. Even plus 24 will be even. Even plus 17will be odd. 13 + 45 + 24 + 17 will be odd.


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Can you tell if the product of several numbers will be even or odd?

Yes it is possible to determine if a product will be even or odd. To do this, we need to consider what an even number is. Even numbers are numbers with at least one factor of 2 (meaning they are divisible by 2). Thus, any product of numbers which contains at least one even number will result in an even product. If all of the numbers being multiplied together are odd, the product will be odd. If one or more of the numbers is even, the product will be even.

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Even plus even equals even. Odd plus odd equals odd. Odd plus even equals odd. 13 + 45 (odd plus odd) will be even. Even plus 24 will be even. Even plus 17will be odd. 13 + 45 + 24 + 17 will be odd.


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