The regional round moves from take-home work to an independently written examination. These papers provide four original problems for Grade 9 proof practice.
Practice format: 4 written-solution problems · 240 minutes for this practice paper.
For school year 9. The 240-minute reference is the Lower Saxony organiser’s schedule for years 7–13. Your regional invitation takes precedence.
Five independently authored practice papers follow the stated structure. Difficulty is editorial, not statistically calibrated to a particular competition year. These papers are not endorsed by the organisers.
MO Regionalrunde Klasse 9 mock paper 1
4 problems, two progressive hints per problem and complete worked solutions.
MO Regionalrunde Klasse 9 mock paper 2
4 problems, two progressive hints per problem and complete worked solutions.
MO Regionalrunde Klasse 9 mock paper 3
4 problems, two progressive hints per problem and complete worked solutions.
MO Regionalrunde Klasse 9 mock paper 4
4 problems, two progressive hints per problem and complete worked solutions.
MO Regionalrunde Klasse 9 mock paper 5
4 problems, two progressive hints per problem and complete worked solutions.
Before you start
Practise turning an observation into a proof, keeping track of integer restrictions, and justifying geometry steps. Budget time for reading and for checking all four solutions.
Proof methods · Find a concept or theorem · Official German past papers
Format evidence and participation
Released national Grade 9 regional sheets contain four problems. The Lower Saxony 2026–27 schedule specifies 240 minutes for years 7–13; arrangements should be checked with the student’s own organiser. Official format source. Checked 27 September 2026. Eligibility and applications remain with the organisers.