In this module, you can study how to add and subtract integers.
This ten-minute video from Khan Academy uses the number line to help you visualise adding and subtracting negative numbers. It's a long video, but it's worth watching the whole thing.
If you remember lyrics easily, the song in this video can help you remember how to add and subtract integers.
This short video explains why subtracting a negative is the same thing as adding a positive.
You add and subtract with negative numbers in everyday life when you estimate changes in temperatures and bank balances.
Use these search terms to find additional resources:
adding with negative numbers