prompt: John buys 5 toys that each cost $3.  He gets a 20% discount.  How much did he pay for everything?
messages.content: John buys 5 toys that each cost $3.  He gets a 20% discount.  How much did he pay for everything?
messages.role: user
messages.content: The toys cost 5*3=$<<5*3=15>>15
  His discount is worth 15*.2=$<<15*.2=3>>3
  So he pays 15-3=$<<15-3=12>>12
  #### 12
messages.role: assistant