1+3+5+7+9=25
No. Any number that ends in 1, 3, 5, 7 or 9 (odd single-digit numbers) are odd numbers. Numbers that end in 2, 4, 6, 8 or 0 (even single digit numbers) are considered even numbers. 653 ends in 3, which is an odd #, so it is considered odd, not even.
111 and 201
This is not possible, since there are only five single digit odd numbers, which are 1, 3, 5, 7 and 9.
50% of numbers divisible by 5 are even, the other 50% are odd. If the single's digit of a number is 5, then the number is divisible by 5 and odd. For example, 25. However, if the single's digit of a number is 0, then the number is divisible by 5 and even. For example, 20.
All of them. There are roughly 45,000 5-digit odd numbers. None of them end in 0.
All of those numbers are odd, except the 4. If you were referring to the number as a whole, it is odd because the last digit in the ones place is odd.
11111
Easily put any number with a single odd number 1,3,5,7,9 in a three digit number. Like 113 the 3 and 1 makes it odd number or 223 the three makes it odd.
There are only five distinct odd digits.
1, 3, and 5.
There are 17 such numbers.
5555