Question

Which is the smallest three digit odd number?

Answer 1

Hint: This question is very simple to understand as well as to solve. We will first filter all the three digit numbers and then out of that those are odd numbered. But at the end we will pick the smallest three digit odd number.

Complete step-by-step answer:
The three digit number starts from 100 and ends at 999.
These numbers consist of both even and odd numbers.
The numbers having even digits on units’ place such as 0,2, 4, 6 and 8 are the even numbers.
The numbers having odd digits on units’ place such as 1, 3, 5, 7 and 9 are the odd numbers.
Thus half of the numbers are even and remaining half are odd.
Now the smallest three digit number is 100 but it is having 0 on its unit place. So it is not an odd number.
Moving forward we have 101 as a three digit number. The answer is a three digit and odd number.
Thus the smallest three digit odd number is $101$.

Note: Note that the units place digit always decides the type of the number whether it is odd or even. Whatever the length of the number is! Also many students may get confused in even-odd and prime-composite. Both are totally different. And also remember 1 is an odd number for sure but it is neither prime nor composite.