7th Grade Hard Math Problems - An Ideal Test | Lumos Learning Top 10 Difficult questions for 7th-grade math students with answers. Help Your Child Be Prepared Subscribe to Lumos StepUp for Test Prep and Much More! Hard math problems for 7th graders with answers to practice. Find the top 10 difficult questions for Grade 7 Mathematics that help improve math skills. EdSearch Login here 888-309-8227 732-384-0146