ALGEBRA FOR TEN YEAR OLDS: #1 priority, however I would encourage you to do a co-publishing deal for this title with a company that specializes in educational books. If 2+2 were to publish it under its own masthead it would not reach the audience it would deserve.
A SIMPLE GUIDE TO "THE THEORY OF POKER": I suggested this to Ed Miller once, I actually think he should rewrite this book with you. His easily approachable style would make this title a huge hit.
50 POKER HANDS THAT REALLY TEACH YOU SOMETHING: This has been done by Jacobs and Cooke, but there is tons of room for another title like it. I don't expect it to be the huge seller that your other titles have been however, its not a breakthrough subject unfortunately (it should be, but it isn't). Food for thought, not of the existing hand sample books have sold that well except Harington's (and we should point out that Harington's 3rd book did not sell as well as the first two).
Whatever your decision, I look forward to your next book!
TT