Math is like any other skill: you have to be taught the proper ways and you have to practice. I'm pretty much not kidding when I say that I could have been a fucking math genius... I just never cared enough and didn't practice nearly enough. And? I hate analog clocks. I've never been able to play card games like poker. You know my issues with conceptualizing time. I used to frequently get the process correct in a complex problem and then blow it by transposing two numbers or making some comparatively minor calculation error. I was ace in science and geometry classes, but had far more difficulty in trigonometry (which can get hellish for anyone who has trouble keeping numbers and distances and things straight). So if I have all these issues and still like math and am capable of it... well, you know, I'm inclined to say it's more the teachers and the encouragement one gets than it is any innate inability to do math.

And all of my advanced math classes were fairly evenly matched between boys and girls.