Math challenge styling

Yeah, of course. It's just markup and CSS, you can add styles to do pretty much whatever you'd like.

You can switch to the left label form format if you prefer, that parts easy. The other fields can be aligned doing something like this.

[css]
body .gform_wrapper .gfield_captcha_container {
    width: 200px;
}
body .gform_wrapper.gfield_captcha_input_container {
    float: right;
    margin-top: 8px;
}

screenshot: http://bit.ly/qlGvQ3

Or you can just float the label for that one field if you want to keep the top label option for the rest of your form

[css]
.gfield_captcha_container {
    width: 250px;
}
.gfield_captcha_input_container {
    float: right;
    margin-top: 8px;
}
li#field_97_16 label {
    float: left!important;
    margin: 14px 8px 0 0 !important;
}

screenshot : http://bit.ly/qdcVcf

You'd have to view your source and get the proper field ID to replace the one in my example.

You can find more specifics on targeting fields and elements with CSS here if you need.

http://www.gravityhelp.com/documentation/page/CSS_Targeting_Samples

I'm happy I could help. Thanks for the update.