If you get a 68 and retests only go up to a 70, will retaking the rest even matter?
It’s worth it if it helps you learn the material. Also, you don’t know what your final GPA in the class will be at the end and can two points tip the scale for someone on the bubble - It Could!
I agree with the statement above, it’ll help you have more confidence in the material and it could raise your grade even by .10 of a percent!