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HESI A2 MATH EXAM 2026 PRACTICE QUESTIONS & VERIFIED ANSWERS
• Complete 200-question study guide with detailed EXPERT RATIONALE for every
item—covers all HESI A2 Math domains including arithmetic, decimals, fractions,
percentages, ratios, algebra, geometry, conversions, and applied problem-solving.
• Study approach: Work through each section systematically, review EXPERT
RATIONALE thoroughly, identify weak areas, and revisit those topics to build
mastery before test day.
QUESTION 1
A nurse is calculating medication dosages. If a patient requires 500 mg of
amoxicillin and the available concentration is 250 mg/5 mL, how many
milliliters should be administered?
A) 2 mL
B) 5 mL
C) 8 mL
D) 10 mL
E) 15 mL
CORRECT ANSWER: D) 10 mL
EXPERT RATIONALE: Using the dosage formula (Desired/Available × Volume),
calculate: 500 mg ÷ 250 mg × 5 mL = 2 × 5 mL = 10 mL. This is a fundamental
medication calculation used frequently in nursing practice.
QUESTION 2
,Convert 0.75 to a fraction in simplest form.
A) 3/5
B) 3/4
C) 7/10
D) 5/8
E) 2/3
CORRECT ANSWER: B) 3/4
EXPERT RATIONALE: 0.75 means 75/100. To simplify, find the greatest common
divisor (GCD) of 75 and 100, which is 25. Therefore, 75 ÷ 25 = 3 and 100 ÷ 25 = 4,
resulting in 3/4.
QUESTION 3
A patient's blood pressure reading is 145/92 mmHg. What percentage increase
is the systolic reading compared to a normal systolic reading of 120 mmHg?
A) 15%
B) 17.4%
C) 20.8%
D) 25%
E) 29.2%
CORRECT ANSWER: C) 20.8%
EXPERT RATIONALE: Calculate the percentage increase using: [(145 - 120) ÷ 120] ×
100 = (25 ÷ 120) × 100 = 0.208 × 100 = 20.8%. This demonstrates understanding of
percentage change in clinical contexts.
QUESTION 4
,Simplify the expression: 2(3x + 4) - 5(x - 2)
A) x + 18
B) x + 2
C) x - 2
D) 2x + 18
E) 2x - 2
CORRECT ANSWER: A) x + 18
EXPERT RATIONALE: Distribute: 2(3x + 4) = 6x + 8 and -5(x - 2) = -5x + 10. Combine
like terms: 6x + 8 - 5x + 10 = x + 18. This algebraic manipulation is essential for
solving clinical calculation problems.
QUESTION 5
If 3 tablets cost $4.50, how much would 8 tablets cost?
A) $10.50
B) $11.00
C) $12.00
D) $13.50
E) $14.00
CORRECT ANSWER: C) $12.00
EXPERT RATIONALE: Set up a proportion: 3 tablets/$4.50 = 8 tablets/x. Cross-
multiply: 3x = 36, so x = $12.00. This ratio and proportion skill is vital for pharmacy
and medication cost calculations.
QUESTION 6
What is 35% of 180?
, A) 58
B) 60
C) 63
D) 65
E) 68
CORRECT ANSWER: C) 63
EXPERT RATIONALE: Calculate 35% of 180: 0.35 × 180 = 63. Percentage calculations
are fundamental for dosage determinations and statistical analysis in healthcare.
QUESTION 7
Arrange in order from smallest to largest: 0.5, 3/8, 0.45, 1/2, 0.4
A) 0.4, 3/8, 0.45, 0.5, 1/2
B) 3/8, 0.4, 0.45, 0.5, 1/2
C) 0.4, 3/8, 0.45, 1/2, 0.5
D) 3/8, 0.4, 0.45, 1/2, 0.5
E) 0.4, 0.45, 3/8, 0.5, 1/2
CORRECT ANSWER: D) 3/8, 0.4, 0.45, 1/2, 0.5
EXPERT RATIONALE: Convert all to decimals: 0.5 = 0.5, 3/8 = 0.375, 0.45 = 0.45, 1/2
= 0.5, 0.4 = 0.4. Order: 0.375, 0.4, 0.45, 0.5, 0.5 → 3/8, 0.4, 0.45, 1/2, 0.5. Decimal
comparison is critical for precise clinical measurements.
QUESTION 8
A patient receives 2 units of insulin per kilogram of body weight. If the patient
weighs 68 kg, how many units of insulin are required?
A) 100 units