prompt: Robert had 25 balls. Tim gave him half of his 40 balls. How many balls does Robert have now?
messages.content: Robert had 25 balls. Tim gave him half of his 40 balls. How many balls does Robert have now?
messages.role: user
messages.content: Tim gave 40 / 2 = <<40/2=20>>20 balls to Robert.
  Robert now has 25 + 20 = <<25+20=45>>45 balls.
  #### 45
messages.role: assistant