The Ratio Calculation Quiz is a free, unofficial web app for practicing ratios, proportions, percentages, rates, scale, and original word problems in a 4-choice quiz format.
The app covers simplifying ratios, ratio values, equivalent ratios, missing numbers in proportions, dividing a quantity by a ratio, continued ratios, scale and recipe problems, percentages, rates, inverse ratios, and original word problems.
Each problem is short enough for quick review, while longer courses support repeated practice and time-attack challenges.
Students can begin with basic equivalent ratios, then move into bar-model style division, known-part problems, difference problems, percentages, rates, scale, and word problems.
Hints change dynamically for the current problem and include simple original SVG diagrams for bar models, equal-ratio tables, proportions, percentages, known-part problems, difference problems, continued ratios, and inverse ratios.
My Page stores challenge history, best records, and often missed questions, making the app useful for repeated review.
Learners can practice the order of A:B, identify whether a whole, a part, or a difference is given, and decide whether to use the same multiplier or an inverse ratio.
Teachers and guardians can use the review records to notice which ratio patterns need more practice.
This site is not an official website of any ministry, board of education, school, publisher, cram school, preparatory school, or educational material company.
This site is not approved, certified, supervised, or endorsed by any organization or company.
The questions shown here are not reproductions of textbooks, reference books, workbooks, drills, national academic assessments, entrance exams, mock exams, or certification tests.
Questions, answer choices, explanations, passages, diagrams, tables, and illustrations are created independently for this app.
For official curriculum, school materials, entrance exam information, and certification information, please check each official website.
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