you download 12 new songs to your MP3 player. then you delete 5 old songs. write each amount as a integer.

12 - 5 = 7

12-5

You download 12 new songs to your MP3 player. Then you delete 5 old songs

To write the amount of new songs downloaded and old songs deleted as integers, you can use positive and negative numbers. You can assign a positive sign to the new songs and a negative sign to the old songs.

Since you downloaded 12 new songs, you would represent this as +12.
And since you deleted 5 old songs, you would represent this as -5.

So, to write each amount as an integer:
New songs downloaded: +12
Old songs deleted: -5