Lizzy: On Monday Buddy has 30 baseball cards. On Tuesday Buddy loses half of them. On Wednesday Buddy buys 12 baseball cards. On Thursday he buys a third of what he had on Tuesday. How many baseball cards does he have on Thursday?.
Me: Hmmm, let me think. I think this is the detailed solution:
On Tuesday Buddy has 30 / 2 = 15 baseball cards. On Wednesday Buddy has 15 + 12 = 27 baseball cards. On Thursday Buddy buys 15 / 3 = 5 baseball cards. On Thursday Buddy has a total of 27 + 5 = 32 baseball cards. Final answer: 32.