Use the solutions as a rather than just a way to complete the book. After checking your answers, revisit the specific grammar sections or word lists for any questions you got wrong to reinforce your learning.
series by Hueber Verlag is a popular modular textbook for adult learners. The "Lösungen" (solutions) are essential for self-study to check accuracy in grammar and vocabulary tasks. Menschen B1 1 Kursbuch Pdf Losungen
Many learners confuse these. Here is the breakdown: Use the solutions as a rather than just