# Prove an expression will be a multiple of a given number

In this lesson we will learn how to prove that an expression is a multiple of a particular number for all integer values of a variable.

# Video

Click on the play button to start the video. If your teacher asks you to pause the video and look at the worksheet you should:

- Click "Close Video"
- Click "Next" to view the activity

Your video will re-appear on the next page, and will stay paused in the right place.

# Worksheet

These slides will take you through some tasks for the lesson. If you need to re-play the video, click the ‘Resume Video’ icon. If you are asked to add answers to the slides, first download or print out the worksheet. Once you have finished all the tasks, click ‘Next’ below.

# Lesson summary: Prove an expression will be a multiple of a given number

The next lesson in Algebraic Proof is "Consecutive number proofs"