: Working with line segments, rays, and coordinate beams.
If you are struggling with a specific "hard" problem, check the from the authors themselves. This guide often provides the logic behind the most difficult tasks in the book, which can be more helpful than just seeing the final answer.
: This is one of the most reliable sources for finding the "ГДЗ по математике 5 класс Потапов (дидактические материалы)" . It covers various versions of independent work (самостоятельные работы) and control tests (контрольные работы).
Several platforms provide step-by-step answers for this specific workbook:
ГДЗ по математике за 5 класс, решебник и ответы онлайн