SaraLaLa’s Reviews > Book of Perfectly Perilous Math - 24 Challenges > Status Update

I'm so bad at the logic questions. Example: you have a 9 min hourglass and a 13 min hourglass. How can you time exactly 30 minutes with that? Sounds so easy, and I got so close, but it drove me nuts!!

I'm super psyched to use this book with my students more next year.