A Scrabble mathematical game

TuxMathScrabble
Free
Offline
http://www.asymptopia.org/

TuxMathScrabble (TMS) challenges kids to construct compound equations and consider multiple abstract possibilities. You can make a move like: 13-6=7, or something more complicated, like: 12÷16×3=9÷4. The expressions need not evaluate to integers, they just need to be equal.