conversations.from: human
conversations.value: I would love to understand how to solve this problem: Gabby is saving money to buy a new makeup set. The makeup set costs $65 and she already has $35. Gabby’s mom gives her an additional $20. How much money does Gabby need to buy the set?
  Can you explain?
conversations.from: assistant
conversations.value: Deduct the amount saved from the total cost of the set. $65 - $35 = $30
  Deduct the amount of money Gabby received from her mom. $30 - $20 = $10