Which of the following expressions result in an even number?

Which of the following expressions result in an odd number?

Which of the following expressions result in an even number?

Which of the following expressions result in an even number?

Which of the following expressions result in an even number?

Which of the following expressions result in an odd number?

Which of the following expressions result in an even number?

Which of the following expressions result in an odd number?

Which of the following expressions result in an even number?

Which of the following expressions result in an odd number?