great little math game! an excellent brain workout. i completely forgot about the order of operations at first!
i REALLY like how it's a resource management game too - strategically choosing cards (especially operators) to maintain a varied supply. and the tension really goes up when you're dealing with a timer AND shifting cards; almost too tense for a mellow-leaning guy like me, but I think it adds a fun sense of urgency. i occasionally came up against an aspect of the game that surprised me: wanting to use as many cards as possible and having multiples of a certain number - like eights, for example - I might've wanted to do something like 89-81 to get to the target number of 8, but as soon as I clicked on the first eight, the game scored it as a one-card play. i suppose, once the player realizes that, it can be seen as an additional challenge - trying not to finish your equation too early. and I realize that the only way to prevent it from happening is to force the player to hit enter or something (to confirm that their answer is their 'final answer'), but I thought I'd mention it anyway. more of an observation than a suggestion.
whoa, i MUST have liked this game - the mechanics of it really got me thinking (hence the long-winded comment)