This worksheet is great to use if you have introduced Midpoint problems through pictures. I used this worksheet after I did a class investigation on how to find the middle of students standing on a coordinate plane. Once they learned how to find the point between them (the endpoints), I had them model and find the endpoint when given an endpoint and midpoint. After practicing the different types of midpoint problems, I use this worksheet for the students to practice it on their own. I also throw in problems dealing with circles. Even though they are the same concept, my students usually struggle with anything "different."
This worksheet has 13 problems, all dealing with finding the midpoint or endpoint of a segment. There are 2 application problems dealing with circles. It is a great introductory worksheet. It is a little simple, but it is a great way to build their confidence.