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Why are odd numbers called odd numbers?
Because they are one more than the even numbers
How would you determine whether the product of many natural numbers is even or odd?
If at least one of the numbers is even, the result will be even. Otherwise all the numbers are odd and the result will be odd.
How could you determine whether a sum of numbers such as 127 plus 38 is even or odd?
The parity rules are: Odd + Odd = Even Even + Even = Even Odd + Even = Odd Even + Odd = Odd So the parity where one number is even is that of the other number. This means that you can go through a list of numbers and ignore all the even numbers. Every PAIR of odd numbers has even parity and by the previous paragraph, even parity can be ignored. So you can pair off odd numbers and ignore them.
Which pair of numbers has an even product and an odd sum?
Any pair of one even and one odd number will have an even product and an odd sum.
What the pattern called even odd numbers?
There is no such pattern because there are no even odd numbers. Odd numbers, by definition, are odd and therefore, not even.
