conversations.from: human
conversations.value: Solve the following math problem: Laura bought 2 pairs of pants for $54 each and 4 shirts for $33 each. She gave $250 to the cashier. So how much change did she take?
conversations.from: assistant
conversations.value: 54*2=$108 is the price of 2 pairs of pants.
  4*33=$132 is the price of 4 shirts.
  108+132=$240 is the total price.
  So the cashier gave 250-240=$10 change to Laura.