This is a free, independently created 4-choice arithmetic quiz for learners who want practice around Arithmetic Kentei Grade 9 level.
The app does not reproduce official questions. It uses original arithmetic questions based on general mathematical facts such as operations, units, fractions, decimals, time, shapes, and tables.
The courses are independently organized for daily review and time-attack practice. They are not a copy of any official exam, textbook, workbook, or sample-question sequence.
Hints change according to the current question and include original diagrams such as clocks, rulers, fraction bars, block models, tables, and simple graphs.
My Page stores challenge history, best records, and often missed questions so that learners can review weak topics repeatedly.
This quiz helps learners review not only calculation speed, but also reading the question, choosing the right operation, and checking the unit in the answer. It covers addition, subtraction, multiplication, division with remainders, time, units, shapes, fractions, decimals, tables, graphs, and word problems.
Each question is short and uses four choices, so it works well as a warm-up before worksheets, a quick review after homework, or a light practice session with parents or teachers.
The hints change with the question. Time questions use clocks, unit questions use conversion steps, fraction questions use equal-part diagrams, and word problems use bar models or comparison diagrams. Learners can review why a calculation is needed, not just which answer is correct.
This site is an unofficial, independently created practice quiz. It is not operated, approved, certified, supervised, or endorsed by the Japan Mathematics Certification Association.
All questions, answer choices, explanations, and diagrams in this app are original. They are not reproductions of official past questions, official sample questions, model answers, official answer sheets, textbook content, reference books, entrance exams, mock exams, or school handouts.
Please check the official website for formal examination information. If there is any rights-related concern, please contact us.