prompt: Tom needs to buy a new gaming system.  He trades in his super Nintendo for an original NES.  The SNES is worth $150 and the store gives him 80% of that value.  He gives $80 and gets back $10 change and a game worth $30.  How much was the NES on sale for?
messages.content: Tom needs to buy a new gaming system.  He trades in his super Nintendo for an original NES.  The SNES is worth $150 and the store gives him 80% of that value.  He gives $80 and gets back $10 change and a game worth $30.  How much was the NES on sale for?
messages.role: user
messages.content: He traded in the SNES for 150*.8=$<<150*.8=120>>120
  Including the money he gave, he spent 120+80=$<<120+80=200>>200
  He got 10+30=$<<10+30=40>>40 in change
  So the NES cost 200-40=$<<200-40=160>>160
  #### 160
messages.role: assistant