conversations.from: human
conversations.value: Can you guide me through solving this problem: Benny has bought a new piggy bank and wants to start saving money. In January he adds $19, then adds the same amount in February. By the end of March, he has $46. How many dollars did he add to the piggy bank in March?
conversations.from: assistant
conversations.value: In January and February, Benny added 19 + 19 = $38 to the piggy bank.
  Calculating the difference between this and the total he has at the end of March shows that he saved 46 – 38 = $8 in March.