Adrianna has 10 pieces of gum to share with her friends. There wasn't enough gum for all her friends, so she went to the store to get 3 more pieces of gum. She gave out gum to 11 friends. How many pieces of gum does Adrianna have now?
After buying 3 pieces of gum Ariana has 10 + 3 = <<10+3=13>>13 pieces of gum.
After giving her 11 friends gum Ariana has 13 - 11 = <<13-11=2>>2 pieces of gum left.
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