Monster Games: Algorithm Arcade
Standards: CCSS.MATH 4.NBT.B.4, TEKS.MATH 4.4A, BEST MA.4.NSO.2.3, Fluently add and subtract multi-digit whole numbers
There is an issue with the Monster Games. The monsters are not that great with math as they never seem to pay attention which means the leaderboards are a bit of a mess.