conversations.from: human
conversations.value: Find the answer to this math problem: A school is planning a community outreach program. Each classroom must raise $200 for this activity. Classroom A has raised $20 from each of two families, $10 from each of eight families, and $5  from each of ten families. How much more money does Classroom A need in order to reach the goal?
conversations.from: assistant
conversations.value: Classroom A raised 2 x $20 = $40 from two families.
  They raised 8 x $10 = $80 from eight families.
  They raised 10 x $5 = $50 from ten families.
  Altogether, they raised $40 + $80 + $50 = $170.
  Therefore, they need $200 - $170 = $30 more to reach the goal.