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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?
Wiki User
∙ 8y ago
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.
Wiki User
∙ 8y ago
Wiki User
∙ 8y agoRemove 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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Is there a math word j?
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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?
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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.
How can you determine whether a sum of several numbers such as 13 45 24 17 is even or odd?
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What number is between 1 and 100?
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