OAT Quantitative Reasoning study materials
OAT Quantitative Reasoning study resources

OAT Quantitative Reasoning study plan

OAT Quantitative Reasoning · Give each week a clear focus.

8 weeks · About 6 hours per week

Week 1

Arithmetic and Basic Algebra

  • Diagnose baseline accuracy and pacing by completing a timed 40-question arithmetic and algebra set, then log every miss by error type (concept, setup, computation, time).

  • Rebuild fluency with order of operations, integer and signed-number rules, and divisibility tests by working 30 short drills without a calculator.

  • Compute with squares, cubes, roots, and scientific notation well enough to convert between forms in under 30 seconds each.

  • Set up a personal error log template that records problem type, mistake category, and the one-line fix for each miss.

Your checkpoint

A completed diagnostic score sheet plus a categorized error log covering at least 25 missed or slow problems.

Week 2

Arithmetic and Basic Algebra

  • Solve linear equations in one variable, including those with fractions and parentheses, at 90% accuracy over 30 problems.

  • Translate verbal relationships into single-variable equations and solve them without guessing.

  • Apply exponent rules, polynomial expansion, and factoring to simplify 25 expressions correctly.

  • Reduce average time per arithmetic/algebra item to under 75 seconds while keeping accuracy above 85%.

Your checkpoint

A 30-question timed algebra quiz scored and corrected, with a written note on each remaining error.

Week 3

Fractions, Decimals, Percents, and Ratios

  • Convert fluently among fractions, decimals, and percents in both directions across 40 rapid conversions.

  • Solve percent-change, percent-of, and successive-percent problems using a single consistent method.

  • Set up and simplify ratios, rates, and proportions, including unit-rate and scale problems.

  • Estimate answers by rounding before computing so you can eliminate implausible choices quickly.

Your checkpoint

A one-page method sheet for percent and ratio problems plus 30 solved practice items checked against it.

Week 4

Fractions, Decimals, Percents, and Ratios & Algebraic Expressions, Equations, and Inequalities

  • Solve multi-step word problems involving discounts, tax, mixtures, and unit conversions by defining the variable explicitly before computing.

  • Graph and interpret linear equations, including slope and intercepts, and read information off a line.

  • Solve systems of two linear equations by substitution and elimination and verify each solution.

  • Complete a mixed timed set spanning domains 1 through 3 at or above 80% accuracy.

Your checkpoint

A timed 40-question mixed set (domains 1-3) with score, time per question, and updated error log.

Week 5

Algebraic Expressions, Equations, and Inequalities

  • Solve and graph linear inequalities, including compound inequalities, and correctly handle sign flips when multiplying or dividing by a negative.

  • Apply quadratic techniques: factoring, the quadratic formula, and completing the square, to 20 problems.

  • Simplify rational expressions and solve rational equations while identifying excluded values.

  • Recognize function notation and evaluate or interpret functions from equations and simple graphs.

Your checkpoint

A 25-question algebra quiz on inequalities, quadratics, and rational expressions with full worked solutions for every miss.

Week 6

Word Problems and Applied Quantitative Reasoning

  • Translate rate, work, and distance problems into equations and solve them under time pressure.

  • Set up and solve mixture, average, and consecutive-integer problems using a defined variable strategy.

  • Break multi-step applied problems into labeled sub-steps so partial credit reasoning carries through to the answer.

  • Practice back-solving from answer choices when direct setup is slow.

Your checkpoint

Ten fully written-out solutions to applied word problems, each showing variable definition, equation, and check.

Week 7

Geometry and Measurement & Data Interpretation, Probability, and Statistics

  • Compute perimeter, area, and volume for triangles, circles, rectangles, and rectangular solids, and apply the Pythagorean theorem.

  • Convert within and between measurement systems and handle angle relationships in lines and polygons.

  • Calculate mean, median, mode, range, and standard deviation conceptually, and interpret data in tables and simple charts.

  • Compute basic probabilities, including complementary and compound events, from given counts.

Your checkpoint

A formula and concept reference card covering geometry and statistics, plus 25 solved practice items drawn from it.

Week 8

Arithmetic and Basic Algebra & Fractions, Decimals, Percents, and Ratios & Algebraic Expressions, Equations, and Inequalities & Word Problems and Applied Quantitative Reasoning & Geometry and Measurement & Data Interpretation, Probability, and Statistics

  • Complete two full-length timed practice tests under exam conditions and record section-level accuracy.

  • Re-drill the top three error categories from the error log until each is at or above 90% accuracy.

  • Finalize pacing rules for when to skip, guess, or persist on a question.

  • Review the reference cards and confirm every formula can be recalled without notes.

Your checkpoint

Two scored full-length practice tests with a final error-log review and a written test-day pacing plan.

Milestones

Week 2: Score at least 85% on a 30-question timed arithmetic and algebra quiz, with average time under 75 seconds per item.

Week 4: Score at least 80% on a 40-question mixed set covering domains 1-3, and show a measurable drop in computation errors versus the week 1 diagnostic.

Week 6: Write complete, correct setups for 8 of 10 applied word problems without consulting notes.

Week 7: Recall every geometry and statistics formula on the reference card from memory and score at least 80% on the 25-item geometry/statistics set.

Week 8: Achieve at least 75% overall on both full-length practice tests with no single domain below 65%.