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Yes, an even number plus an even number is always even. Also, and odd number plus an odd number is always even.

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โˆ™ 2011-01-16 19:39:38
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Q: Is an even number plus an even number always even?
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What are the rules of an even number?

All even numbers can be divided by two, while odd numbers can't. Also, an even number plus an even number is always even. An odd number plus an odd number is always even. An even number plus an odd number is always odd.


What is even plus an even number?

always even


What does odd plus even equal?

An odd number plus an even number will always be an odd number.


Why is the sum os an even and odd number a odd number?

The sum of an odd and even number is always odd because there's always one left over. Think of any odd number as being any even number plus one. If you add two even numbers, the answer is always even. If you add an even and an odd (plus one), the answer is always odd.


Why is the sum of an odd and even number odd?

The sum of an odd and even number is always odd because there's always one left over. Think of any odd number as being any even number plus one. If you add two even numbers, the answer is always even. If you add an even and an odd (plus one), the answer is always odd.


Why is the sum of an odd or even number odd or even?

The sum of an odd and even number is always odd because there's always one left over. Think of any odd number as being any even number plus one. If you add two even numbers, the answer is always even. If you add an even and an odd (plus one), the answer is always odd.


An odd number plus an even number always produces an odd number?

yes


Does a odd number plus a odd number always equal a even number?

Yes.


What does odd plus odd always equal?

An even number


What is the answer in an odd number plus any even number is?

An odd number plus an even number will always result in an odd number. False, 2 is an odd number so 2+4=6, so you are wrong.


Why is the sum of three odd numbers always odd?

Because the sum of two odd numbers is always even and the sum of that even number plus another odd number is always odd.


Odd number plus an odd number?

Addition of two odd numbers will always give an even number.


When you add two odd number together is your answer an even or an odd number?

Always an even number. Think of an odd number as an even number plus a half. Add them up and the two halves make an even.


When odd number plus an even number is equal even numbers?

Any odd number can be written as an even number plus one. Any even number plus any other even number makes an even number. Add one makes an odd number. So an odd number plus an even number is always an odd number. Algebraically, any odd number can be written as 2a+ 1 where a is a whole number. Any even number can be written as 2b, where b is a whole number. Add them together, the sum is 2(a + b) + 1, which is odd.


What is an even number plus an even number?

It is an even number.


The sum of two odd number is always?

The sum of any two odd numbers is always even. This is because (a) any odd number can always be expressed as an even number plus 1, and (b) the sum of two even numbers is always even. So if X is even and Y is even then X+1 added to Y+1 will equal X+Y+2


Why is the perimeter of a rectangle always even?

The perimeter of a rectangle is always even because the perimeter is twice the length plus twice the width. Whenever you multiply a number by 2, the product is even. When you add two even numbers the sum is even.


What happens when you add an odd number and an odd number?

Two odd numbers always sum to an even number. Always. Two even numbers always sum to an even number, and an odd number and an even number always sum to an odd number.


Why does n squared plus n always add up to an even number?

=n^2 +n =n(n+1) since either n or n+1 has to be even (consecutive numbers) the answer always is an even number


Why is an even number plus an even number always even?

An even number + another even number are always even because if you think in terms of a number line, an even number always skips the odd numbers, when adding, so to speak. If you have 2+2 you are skipping 3. Think of every addition of even numbers broken down into 2's for a minute. 12+4 = 12+2+2, so you start at 12, skip 13, then skip 15.


Is 4 plus 5 even or odd?

The 4 is even. The 5 is odd. Their sum, 9, is odd. The sum of (one even number) + (one odd number) is always odd.


Is a even plus a even equal a odd or a even?

Even. Always


Is the gcf of an odd number and even number is always even?

No, always odd.


The difference of two even number is always an even number?

Yes, the difference between two even numbers is always an even number.


Why does an even number plus an odd number always equal an odd number?

For any even number n, the following integer is odd (n+1), so for any odd number other than 1, you are adding the preceding even number, plus 1. Because all even numbers are multiples of 2, their sum is even, and 1 more will be an odd number.---Think of the odd number as an even number plus one and remember that all even numbers are multiples of two.Therefore:- Any two even numbers added together will always be a multiple of two and therefore even. Any two odd numbers added together will be the same as adding two even numbers plus 1 plus 1. (A multiple of two plus two which is still a multiple of two).An odd number added to an even number will be the same as two even numbers plus 1 in other words a multiple of two (even) plus one making the result odd.Extrapolating further it's easy to see that by the above reasoning that for all positive integers...Any number of even numbers added together will always be even.An odd number of odd numbers added together will always be odd.Any even number of odd numbers added together will always be even,Adding any number of even numbers to any number of odd numbers will make no difference to the outcome, the odd or even outcome will still be determined by the number of odd numbers being added together.---Another approach:Let n, r be real numbers even number representation: 2nodd number representation: 2n + 1sum = 2n + 2n + 1 = 4n + 1 = 2(2n) + 1let 2n = rsum representation becomes: 2r + 1, which is a representation of an odd number.

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