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โˆ™ 2011-03-03 02:56:10
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Q: Does a odd number plus a odd number always equal a even number?
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Related questions

What does odd plus even equal?

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


What does odd plus odd always equal?

An even number


Is an even number plus an even number always even?

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


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.


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

Even. Always


What is even plus an even number?

always even


When does a negative number plus a negative number equal a negative?

Always.


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.


When does the sum odd number plus even number equal even number?

In normal arithmetic, never.


What is an even number plus an even number equal to?

An even number.


Does an irrational plus a rational number equal an irrational number?

Yes, always.


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.


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

yes


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


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 does a negative number plus a negative number equal?

A negative plus a negative still gives a negative answer.


Why is a even number plus an even number equal to an even number?

You can simply take the lowest even numbers and subtract it i.e. 4-2=2


When you add an odd and even number together is the sum odd or even?

It will always be odd. A proof: Call the even number m, call the odd number p. 'p' is equal to an even number 'n' + 1. Adding m and p is equal to m + n + 1; since m and n are both even, their sum is also even (see the related questions). m + n + 1 is one more than an even number, so it is odd, and therefore an odd number plus an even number is also always odd. QED


Does x squared plus x plus 41 always equal a prime number?

No. it's not a prime number when x = 40, 41, 81,82 ...


Is the sum of two odd numbers even?

Yes, always; this is because an odd number is 2E + 1 (E being any even number), and two odd numbers equal 2E1 + 2E2 + 2 x 1 = a lot of even numbers plus two, which is another even number.


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.


Can a negative number plus a negative number equal a positive?

No. It can only become even more negative.


Can you add 2 odd numbers that equal an odd number?

no, b/c you can think of an odd number as an even number plus one. So if you add two odd numbers, you would be adding 2 even numbers plus 2... Let # be even... (#+1) + (#+1) = (#+#) + 2 two even numbers added together are always even


What is an even plus an even equal to?

Even