question: Jasmine's teacher gives stickers for reward. She was given 15 stickers for participating in class, but she lost 7 stickers during playtime. However, her teacher gave her another 5 stickers for helping her classmates. How many stickers does she have at the end?
answer: Jasmine had 15 stickers - 7 stickers = <<15-7=8>>8 stickers after losing 7.
  Then, she now has 8 stickers + 5 stickers = <<8+5=13>>13 stickers at the end.
  #### 13