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Why is the answer always even when multiplying an odd number by an even number?
Wiki User
∙ 13y ago
Any multiple of an even number is divisible by that number, and every even number is divisible by two.
When you multiply numbers, it is easiest to think of them as being groups of numbers that you add together.
For example: 5 X 6= 30.
You can think of this as 5 groups of 6 ones, and when you add 6 to itself 5 times, you get 30. So multiplication really looks like 6+6+6+6+6=30.
A basic rule of addition is that when you add two even number, the result will always be even. So being that multiplication is just faster addiction, this rule applies.
Wiki User
∙ 13y ago
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What is the rule for multiplying an odd and even number?
Your answer will always be even
Which numbers when multiplied by 5 gives an odd numbers?
Every odd number. Multiplying two even numbers gives an even number. Multiplying an odd and an even number gives an even number. Multiplying two odd numbers gives an odd number.
Multiplying an odd number by an even gives an even number?
Yes
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.
An odd number minus an even number even or odd?
Always odd.
What is the rule for multiplying an odd and even number?
Your answer will always be even
What even number and odd number equal a even number?
Your question is incomplete. Adding an even number with an odd number will always result in an odd number. Multiplying an even number with an odd number will always result in an even number.
When you multiply an odd number by an odd number is the answer always odd?
Yes - while multiplying odd numbers by even numbers will always produce an even result.
Which numbers when multiplied by 5 gives an odd numbers?
Every odd number. Multiplying two even numbers gives an even number. Multiplying an odd and an even number gives an even number. Multiplying two odd numbers gives an odd number.
Does multiplying an odd number by an even number give an even answer?
odd * odd = odd answer even * even = even answer odd * even = even answer
Multiplying an odd number by an even gives an even number?
Yes
Are the multiples of an odd number always odd?
No, only every other multiple is odd. Example: 3,6,9,12,15,18
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.
When you multiply two prime numbers you always get an odd number?
For 'odd' prime numbers this is true, but '2' is also a prime number , so you will have an even answer. Remember when multiplying even X even = even even X odd = even odd X even = even odd x odd = odd.
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.
An odd number minus an even number even or odd?
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.
