Odd numbers end with the digits:
Even numbers end with the digits:
We have 23 students in our class. Do we have an even or odd number of students?
Which of the following numbers is odd?
Which of the following numbers is even?
Is the number 18 odd or even?
Is the number 13 odd or even?
Is the number 9 odd or even?
Is the number 5 odd or even?
Is the number 7 odd or even?