AND CORRECT ANSWERS
HESI A2 Mathematics Section | Version 2 Exam | Core Domains: Basic Arithmetic, Fractions &
Decimals, Ratios & Proportions, Percentages, Metric & Household Conversions, Algebra, Geometry,
Data Interpretation, and Word Problem Solving | Nursing School Admission Test Focus | Standardized
Assessment Format
Exam Structure
The HESI Mathematics Exam Version 2 for the 2026/2027 admissions cycle is a 55-question,
multiple-choice examination.
Introduction
This HESI Mathematics Exam Version 2 preparation guide for the 2026/2027 academic year reflects the
mathematical competencies required for nursing education. The content emphasizes accurate dosage
calculations, clinical measurement conversions, and logical problem-solving skills essential for safe
medication administration and nursing practice.
Answer Format
All correct answers and calculations must be presented in bold and green, followed by step-by-step
mathematical solutions, clear unit conversions, and clinical application rationales relevant to nursing
practice.
1. A nurse must convert 2.5 grams to milligrams. How many milligrams is this?
A) 25 mg
B) 250 mg
C) 2,500 mg
D) 25,000 mg
C) 2,500 mg
Rationale: 1 gram = 1,000 milligrams. Therefore, 2.5 g × 1,000 = 2,500 mg. This conversion is
essential in nursing for accurate medication dosing (e.g., converting grams of a drug to milligrams for
administration).
,2. A patient is to receive 0.125 mg of digoxin. The available tablets are 0.25 mg each. How
many tablets should the nurse administer?
A) 0.5 tablet
B) 1 tablet
C) 2 tablets
D) 0.25 tablet
A) 0.5 tablet
Rationale: Use the formula: Desired ÷ Available = 0.125 mg ÷ 0.25 mg = 0.5 tablet. Nurses must
calculate fractional doses accurately to avoid under- or overdosing. Always verify if the medication is
scored for safe splitting.
3. Convert 1,750 mL to liters.
A) 0.175 L
B) 1.75 L
C) 17.5 L
D) 175 L
B) 1.75 L
Rationale: 1 liter = 1,000 mL. So, 1,750 mL ÷ 1,000 = 1.75 L. Fluid intake/output is commonly
documented in liters in clinical settings; accurate conversion ensures proper hydration assessment.
4. Solve for x: 3x + 5 = 20
A) 3
, B) 5
C) 7
D) 15
B) 5
Rationale: Subtract 5 from both sides: 3x = 15. Then divide by 3: x = 5. Algebra is used in nursing for
IV flow rate calculations and dilution problems.
5. A solution contains 5 grams of medication in 250 mL of fluid. What is the concentration
in mg/mL?
A) 0.02 mg/mL
B) 2 mg/mL
C) 20 mg/mL
D) 125 mg/mL
C) 20 mg/mL
Rationale: First, convert 5 g to mg: 5 × 1,000 = 5,000 mg. Then divide by volume: 5,000 mg ÷ 250 mL
= 20 mg/mL. This skill is vital for IV medication preparation and pump programming.
6. What is 35% of 240?
A) 72
B) 84
C) 96