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∙ 10y ago
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Is the product of an even number and an odd number even or odd?
Even. 2 x 3 = 6 for example
The sum of two odd numbers is always odd true or false?
False. The sum of 3 and 3 is 6. And 6 is even. The product of two odd numbers is always odd. false the sum of 2 odd numbers is always even 3+3=6 5+5=10 103+103=206
Can the product of an even and odd number be even?
Yes. As in 2 x 3 = 6 In fact, it must be even.
Are the multiples of an odd number always odd?
No, only every other multiple is odd. Example: 3,6,9,12,15,18
Will odd times even factors always equal a product with an eve digit and an odd digit?
No. 2 x 3 = 6
What do you know about the product of odd and even numbers?
There are 3 cases: An even number time an even number such as 2*6=12 is always even. Proof: Since even numbers can be expressed as 2*X and 2*Y, their product is 4xy which is even. An even number times an odd number (same as odd times even) such as 2*3=6 is always even. Proof: 2X represents an even number and 2Y+1 represents an odd number. Their product is 4XY+2X=2(2XY+X), which is even. An odd number times an odd number such as 11*11=121 is always odd. Proof: Let 2X+1 and 2Y+1 be the two odd numbers. Their product is 4XY+2X+2Y+1 = 2(2XY+X+Y)+1, which is odd. Summary: the product of two numbers is always even unless the two numbers are both odd.
Do an odd and an odd equal an odd?
No -an odd and an odd equals even ( 5+3=8) -an even and an odd equals odd (2+3=5) -an even and an even equals even (4+6=10)
Is the sum of an odd number an odd number or even?
the answer is even 3+1 = 4 3+3=6
What is the pattern of odd and even numbers in the row 3 or 3 column?
Alternating. 1 2 3 4 5 6 7 8 9 in row 3, (7,8,9) the 8 is even and the 7 and 9 are odd. thus odd,even,odd. in column 3, (3,6,9) the 6 is even and the 3 and 9 are odd, thus odd,even,odd. as the row/column selector (3) is odd the first digit in that row/column of a 3X3 grid will be odd as will the first. the numbers then alternate even odd even.
How can you tell whether the product of a multiplication problem will be odd or even?
You can tell it will be even when the number you are multiplying has a 2 4 6 8. You can tell it will be odd when the number you are multiplying has a 1 3 5 7.
Why aren't all odd numbers divisible by 3?
Because not all odd numbers are multiples of 3 - I have shown you below that this is the case and you can see some multiples of 3 are even and some are odd and you can also see that there are even and odd numbers BETWEEN the multiples of 3. 1 (odd) 2 (even) 1*3 =3 (odd) 4 (even) 5 (odd) 2*3 = 6 (even) 7 (odd) 8 (even) 3*3 = 9 (odd) 10 (even) 11 (odd) 4*3 = 12 (even)
What is an odd plus an even?
Well, lets say you add 3 and 6, you would get 9 which is odd. How about 7 and 6 is 13 again which is odd so I think the answer would be... Even + Odd = Odd :)
