conversations.from: human
conversations.value: Find the answer to this math problem: Kate bought 7 packs of red bouncy balls and 6 packs of yellow bouncy balls. Each pack contained 18 bouncy balls. How many more red bouncy balls than yellow bouncy balls did Kate buy?
conversations.from: assistant
conversations.value: Kate bought 7 packs × 18 balls/pack = 126 red bouncy balls.
  She also bought 6 packs × 18 balls/pack = 108 yellow bouncy balls.
  Kate bought 126 balls - 108 balls= 18 more red bouncy balls than yellow bouncy balls.