Hello Nandrian,
Happy to help!
There isn't a way to pass scores to other courses, but if your main concern is for learner progress to be saved if they are unable to complete the course in one sitting, then your course already does this by default through the Suspend Data element. The Suspend Data stores course progress, which is then read by an LMS and used to return a learner to the point where they left off when a course is resumed.
As long as you are publishing your course for LMS distribution and uploading to an LMS, and you have your resume behavior set correctly, your learners should be able to resume their progress when reaccessing your course.