SO addictive-and frustrating!

Agggh! I LOVE both the numbers and the letters conundrums, BUT they are so addictive! Be warned. The higher levels are so worth it (only $1.99) but so frustrating when a seemingly impossible word is revealed (or you realize how simple one equation is)
I found my scores improving after only half an hour at these so you definitely do improve with practice! But be warned you need to set a finish alert!!!

Wannadoo about Conundra Math: a brain training number game for iPhone and iPad, v2.0