My advisor told me that the most important sections to work on for Speech graduate programs is the Verbal and AW, and if you're confident in those scores as long as you didn't totally bomb the math that you do not need to retake it!
If you're worried about it though, it may be worth it to take it again to see if you do better just for the piece of mind. The application process is long, and if you're worried it might be worth it to have one less thing to stress about.