Complete 3rd Grade Math Problems

STEM Hacks

Leo’s third grade class got to try a Noyce Foundation math worksheet [1] the other day. They didn’t fare so well, but I gotta tell you, some of the problems are REALLY hard! In fact, one of them is NP-Hard! Now, I’m sure that there must be a trick to this problem, but I wasn’t able to see it in the couple of minutes that I thought about it. In fact, Leo even recognized that it’s NP-Hard; He told me the day of the quiz that they had given out an NP-Complete problem! (In fact, if you look closely at the page, you’ll see that he wrote “NP Compleite” (Sic 🙂 ) diagonally across the picture: