Lizzy: Jerry paid off some of his debts. Two months ago, he paid $12 while last month, he paid $3 more. If his debt was $50 in all, how much does he still have to pay?.
Me: Hmmm, let me think. I think this is the detailed solution:
Jerry paid $12 + $3 = $15 last month. He paid a total of $12 + $15 = $27 for two months. Therefore, Jerry still has to pay $50 - $27 = $23. Final answer: 23.