HESI A2 Math Preparation: Skills to Review Before Test Day
Mathematics can be a challenging part of the HESI A2 for students who have not used certain calculation skills for a long time. The good news is that preparation becomes easier when you identify the foundational skills you need and practice them systematically. Before you begin, confirm which sections your nursing program requires. HESI A2 requirements can vary by institution, so your school's instructions should guide your preparation.
Review fractions and decimals
Fractions and decimals appear in many everyday calculations. Make sure you understand how to simplify fractions, compare values, and perform addition, subtraction, multiplication, and division. You should also be comfortable converting between fractions and decimals. For example, understanding that \(1/4 = 0.25\) helps you recognize equivalent values when working through a problem. When you make an error, identify whether the problem came from the calculation itself or from an earlier step, such as converting a fraction incorrectly.
Strengthen percentage skills
Percentages express a value as a portion of 100. They are useful for interpreting discounts, proportions, and other numerical relationships. Practice identifying the whole amount, the percentage, and the portion being calculated. Writing down what each number represents can help you select the correct operation instead of guessing.
Understand ratios and proportions
Ratios compare quantities, while proportions express an equality between ratios. Read each problem carefully and identify which quantities are being compared. Pay attention to units. A comparison between milliliters and liters, for example, may require a conversion before you can make a valid calculation.
Practice measurement conversions
Review the units and conversions included in your official preparation materials. Make sure you understand how to move between units and when a conversion is necessary. Do not rely on memorizing a conversion without understanding its direction. Check whether the resulting quantity should become numerically larger or smaller when changing units.
Learn from calculation errors
Keep a notebook of the mistakes you make. For each one, record the original problem, the incorrect step, and the correct method. This helps you distinguish recurring weaknesses from isolated mistakes. If you repeatedly struggle with fractions, spend additional time on that foundation before moving to more complicated calculations.
Prepare with timed activities
First, prioritize accuracy. Once you can solve problems consistently, introduce timed practice to improve pacing. Use materials that match the mathematics content required by your program. Unofficial practice results can help you monitor progress, but they cannot guarantee a particular official score.
Final thoughts
Effective HESI A2 math preparation begins with foundational skills, careful calculation, and regular review. Identify your weak areas, understand why mistakes occur, and gradually build confidence through targeted practice.
