GMAT Quantitative Strategies and Tips

Overview of the Quant Section

The GMAT Quantitative section consists of 31 multiple-choice questions to be completed in 62 minutes. The two types of questions are:

• Problem Solving (PS): Standard math questions with five answer choices
• Data Sufficiency (DS): Questions that test your ability to determine if enough information is provided to solve a problem

All questions are interspersed and computer-adaptive, adjusting in difficulty based on your performance.

Key Concepts Tested

The GMAT does not go beyond high school-level math, but the challenge lies in logical reasoning, time pressure, and complex wording. Common topics include:

• Arithmetic: fractions, ratios, percentages, integers, powers
• Algebra: equations, inequalities, functions, expressions
• Word problems: work/rate, interest, age, mixture, distance
• Geometry: lines, angles, triangles, circles, coordinate geometry
• Statistics: mean, median, mode, probability, sets
• Number properties: primes, divisibility, remainders, odd/even

Problem Solving Tips

Problem Solving questions require you to find the correct answer using math. Use the following tips:

• Eliminate wrong choices early: If an answer is clearly off, cross it out to save time.
• Plug in numbers: Especially helpful with abstract variables or inequalities.
• Backsolve from answer choices: Start with choice C and plug in until one fits.
• Estimate when possible: Exact calculations aren’t always needed to eliminate options.
• Look for patterns: In geometry or number property questions, identify symmetry or repetition.

Data Sufficiency Tips

DS questions ask whether the information is sufficient, not what the actual answer is. This format tests logic and efficiency.

Use the answer choice grid:

• A – Statement 1 alone is sufficient
• B – Statement 2 alone is sufficient
• C – Both statements together are sufficient, but not alone
• D – Each statement alone is sufficient
• E – Statements together are not sufficient

Strategies:

• Evaluate statements separately first: Always check each on its own before combining.
• Don’t assume numbers: Test multiple cases (positive, negative, fraction, zero).
• Avoid unnecessary calculations: If a conclusion is already clear, don’t solve it out.
• Use strategic numbers: Use smart values like 1, -1, 0, and 2 to test assumptions.

Time Management

You have about 2 minutes per question, but not all questions require the same amount of time. Here’s how to manage your pace:

• Mark and move: If you're stuck for over 2 minutes, guess, flag the question (mentally), and move on.
• Prioritize easy wins: Get confident questions right and fast—this boosts your adaptive score.
• Don’t waste time solving: DS questions don’t need exact answers—just sufficiency.
• Use checkpoints: After 15–16 questions, check if you're around the 30-minute mark.

Common Mistakes to Avoid

• Careless errors: Misreading the question or making calculation errors can cost points.
• Forgetting constraints: If a question says “positive integer,” don’t test zero or negatives.
• Over-solving: Don’t calculate more than what’s needed to prove sufficiency.
• Skipping strategic approaches: Don’t default to algebra when plugging in is faster.

Smart Practice Techniques

• Drill by question type: Spend time mastering Data Sufficiency, then switch to Problem Solving.
• Log your mistakes: Track the question type, error reason, and what you’ll do differently.
• Review explanations deeply: Understand why wrong answers are wrong, not just why the right one is correct.
• Take timed mini-tests: Practice sets of 10–15 questions with a strict timer to simulate test pressure.

Calculator Policy

You are not allowed a calculator on the GMAT Quant section. This means you must be fluent in:

• Basic arithmetic (long division, multiplication)
• Estimating square roots and fractions
• Recognizing number patterns

Use scratch paper efficiently—label work and avoid clutter.

Study Resources to Use

Use official materials and realistic prep tools:

• GMAT Official Guide and Question Bank
• GMATPrep Software with full-length CAT exams
• Manhattan Prep’s Advanced Quant guide
• Target Test Prep for Quant-intensive courses
• Online flashcards for formulas and rules

Formulas to Memorize

The GMAT doesn’t provide a formula sheet, so memorize common math formulas:

• Area of triangle: ½ × base × height
• Area of circle: πr²
• Circumference of circle: 2πr
• Pythagorean theorem: a² + b² = c²
• Distance formula: √[(x₂ - x₁)² + (y₂ - y₁)²]
• Simple interest: I = PRT
• Average = sum ÷ number of items
• Rate × Time = Distance

Final Tips

• Practice mental math regularly—it saves time
• Focus on accuracy before speed
• Use answer choices as clues—they can often guide your approach
• Be flexible—switch strategies if one isn’t working
• Trust your preparation—don’t panic during the test

Conclusion

The GMAT Quant section is less about complex math and more about strategy, logic, and efficiency. With deliberate practice, mastery of core concepts, and test-savvy approaches, you can significantly improve your score. Focus on understanding question types, refining your timing, and learning from every mistake. With time and dedication, high Quant scores are within reach.