An even number can be divided by 2 evenly. An odd number will have a remainder of 1 when divided by 2. 45 is an odd number.
Go through each of the numbers, and count how many of them are odd. If you count an odd number of them, then their sum is odd. If you count an even number of them, then their sum is even.
there are several ways to do this. Start out looking at them. 9x1=9 odd 9x2=18 even 9x3=27 odd 9x4=36 even 9x5=45 odd 9x6=54 even... so it looks like half might be even and half odd, This is because if we look at the numbers 1-11, ie 1,2,3,4,5,6,7,8,9,10. and 11, they alternate odd and even and since 9 is odd and odd times an even is always an even number and an odd times an odd is always an odd number. So to answer the question we need only look at the number of odd numbers between 1 and 11 inclusive. There are 6 so 1,3,5,7,9,and 11 give odd multiples ANSWER: 6 odd multiples of 9 between 1 and 100
45
Adding consecutive pairs of numbers will always turn out to be an odd number. It would have to be consecutive odd numbers: 45 and 47.
An even number can be divided by 2 evenly. An odd number will have a remainder of 1 when divided by 2. 45 is an odd number.
45 is an odd number because the 5 is an odd number
odd
30 is the even number.
No, the 5 makes it an odd no.
Count how many of the numbers are odd. If an odd number of them are odd, then their sum is odd. If an even number of them are odd, then their sum is even.
If the number (count) of odd values to sum is odd, then the answer is odd.If the number (count) of odd values to sum is even, then the answer is even.
45 has only one number and that is 45. It is odd so 45 has one odd number.
Go through each of the numbers, and count how many of them are odd. If you count an odd number of them, then their sum is odd. If you count an even number of them, then their sum is even.
Even plus even equals even. Odd plus odd equals odd. Odd plus even equals odd. 13 + 45 (odd plus odd) will be even. Even plus 24 will be even. Even plus 17will be odd. 13 + 45 + 24 + 17 will be odd.
It is a odd number
there are several ways to do this. Start out looking at them. 9x1=9 odd 9x2=18 even 9x3=27 odd 9x4=36 even 9x5=45 odd 9x6=54 even... so it looks like half might be even and half odd, This is because if we look at the numbers 1-11, ie 1,2,3,4,5,6,7,8,9,10. and 11, they alternate odd and even and since 9 is odd and odd times an even is always an even number and an odd times an odd is always an odd number. So to answer the question we need only look at the number of odd numbers between 1 and 11 inclusive. There are 6 so 1,3,5,7,9,and 11 give odd multiples ANSWER: 6 odd multiples of 9 between 1 and 100