There really is a fair amount of math in nursing classes. However, that doesn't mean that you need to give up! Tutoring, as well as simply doing the assignments conscienciously, should cover most of it, if not all of it.
I was absolutely NEVER good in math. To be honest, I don't think I'm good NOW: difference is, I pay attention to what is being asked, and make sure I answer it. If I have a situation at work where I have to know how long a time I need to infuse something over, I work it out. Make sure it makes sense.
That's really all it is: making sure that what you've answered makes SENSE. After all, if you get an answer of 20 tablets....does that make sense? Ok, try it again. Work it out.
I was never good in math, and yet when it came to the classes I needed for nursing school, I finished algebra with a 98.5 gpa. Probably because I was a helluva lot more motivated than high school!