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.
No. Like all numbers ending in the digit 4, it is even.