HESI A2 Math study guide
HESI A2 Math · Work through your exam, one topic at a time.
The HESI A2 Math section is one component of the HESI Admission Assessment, a standardized entrance exam used by many nursing and allied-health programs as part of their admissions review. Candidates are typically prospective nursing students, practical nursing applicants, and others seeking entry to health-science programs whose schools require the HESI A2. Because the exam is administered by individual institutions, the number of math items, the time limit, the passing score, the fee, and retake rules are set locally rather than globally - always confirm those details with your own program before you register. The math content itself clusters into four practical areas: basic operations and fractions; decimals, percentages, and proportions; measurement and unit conversion; and word problems and applied arithmetic, including dosage-style and rate calculations. The HESI A2 Math study guide has 4 sections and about 1,714 words.
01Basic Operations and Fractions
The Basic Operations and Fractions domain tests whether you can evaluate numerical expressions in the correct order and handle fractions - including mixed numbers - without a calculator. Expect order-of-operations items, fraction addition and subtraction with unlike denominators, multiplication and division of fractions, simplifying, and converting between improper fractions and mixed numbers.
428 words, about 2 min02Decimals, Percentages, and Proportions
The Decimals, Percentages, and Proportions domain checks fluency converting among decimals, fractions, and percents, solving percent equations, and setting up proportions correctly. HESI-style items often pair these skills with a clinical scenario, such as a dosage or solution strength, so the arithmetic must be right and the units must line up.
428 words, about 2 min03Measurement and Unit Conversion
The Measurement and Unit Conversion domain tests whether you can move confidently between metric and household units, choose the right conversion factor, and keep units consistent. Items are usually short but unforgiving: one inverted factor and the answer is wrong even though the arithmetic looks fine.
427 words, about 2 min04Word Problems and Applied Arithmetic
Word Problems and Applied Arithmetic is the domain where the arithmetic is easy but the setup decides the mark. Items ask you to read a short scenario, identify the quantity requested, and combine operations - often two or three - in the right order.
431 words, about 2 min