All problems

All problems tagged with: Permutations

Making Molecules If you look in the first column of the periodic table, you'll … Periodic Table
Identical Plates You have two lego plates of the same size; the plates are … LEGO
Different Plates You have two lego plates of different sizes. One is m studs … LEGO
3x5 and 2x4 Plates You have two Lego plates; one is a 3x5 plate and one … LEGO
3x5 Plates You have two 3x5 Lego plates. You start with one plate flat … LEGO
2x4 Plates You have two 2x4 Lego plates. You start with one plate flat … LEGO