Mabuchi Public Mock Exam for 6th Graders - Exam Name: 6th Mabuchi Public Mock Exam - Target Grade: 6th Grade - Subjects: Science, Math, Social Studies, Japanese, Answer Key and Explanations - Number of Questions: 40-50 questions per subject - With explanations Thank you for viewing. The Social Studies section is unused and comes with an answer sheet. The other three subjects do not have answer sheets. Japanese has some writing in ballpoint pen (see image 2). Includes answers and explanations. There is writing in pencil, which will be erased, but pencil pressure may remain. Thank you for your understanding.