Problems of assessing students’ knowledge in mathematics using LMS MoodleLarisa Petrovna Konnova, Larisa Vladimirovna Lipagina, Elena Fedorovna Olekhova, Alexander Arkadievich Rylov and Irina Kimovna StepanyanSHS Web Conf., 125 (2021) 05011DOI: https://doi.org/10.1051/shsconf/202112505011