prompt: Travis and his brother joined a trick-or-treat event. They collected 68 pieces of candy altogether. Each of them ate 4 pieces of candy after the event. How many pieces of candy were left?
messages.content: Travis and his brother joined a trick-or-treat event. They collected 68 pieces of candy altogether. Each of them ate 4 pieces of candy after the event. How many pieces of candy were left?
messages.role: user
messages.content: They ate a total of 4 x 2 = <<4*2=8>>8 pieces of candy after the event.
  So, Travis and his brother have 68 - 8 = <<68-8=60>>60 pieces of candy left.
  #### 60
messages.role: assistant