Core Domains:
• Basic Arithmetic and Operations
• Fractions, Decimals, and Percentages
• Ratios and Proportions
• Basic Algebra and Linear Equations
• Measurement Systems and Conversions
• Applied Clinical Word Problems
• Data Interpretation and Geometry
The HESI A2 Math Assessment is designed to evaluate foundational
mathematical proficiency required for healthcare professionals. This
comprehensive examination assesses essential computational skills, critical
thinking, and applied problem-solving abilities necessary for safe clinical practice.
Utilizing a rigorous multiple-choice and scenario-based structure, the test
measures a candidate's competency in arithmetic, algebra, ratios, proportions,
and dimensional analysis. By emphasizing real-world clinical applications and
quantitative decision-making, the assessment ensures that future practitioners
can accurately calculate dosages, interpret medical data, and manage numerical
tasks with absolute precision in high-stakes healthcare environments.
Section One: Questions 1–100
What is 3/4 expressed as a percentage?
A. 25%
B. 50%
🟢 C. 75%
D. 85%
🔴 Explanation: To convert a fraction to a percentage, multiply the fraction
by 100%. 3/4 * 100 = 75%.
Solve for x: 5x - 10 = 15
A. 3
🟢 B. 5
C. 7
D. 10
🔴 Explanation: Add 10 to both sides to get 5x = 25, then divide by 5 to
find x = 5.
,Convert 2.5 kilograms to grams.
A. 25 grams
B. 250 grams
🟢 C. 2,500 grams
D. 25,000 grams
🔴 Explanation: Since 1 kilogram equals 1,000 grams, multiply 2.5 by
1,000 to get 2,500 grams.
What is 15% of 200?
A. 15
B. 20
🟢 C. 30
D. 45
🔴 Explanation: Convert 15% to a decimal (0.15) and multiply by 200. 0.15
* 200 = 30.
Simplify the fraction 24/36 to its lowest terms.
A. 3/4
B. 5/6
🟢 C. 2/3
D. 4/5
🔴 Explanation: Divide the numerator and denominator by their greatest
common divisor, which is 12. 24 ÷ 12 = 2 and 36 ÷ 12 = 3.
A patient is prescribed 500 mg of medication. The available tablets are 250
mg each. How many tablets should be administered?
A. 0.5 tablets
B. 1 tablet
🟢 C. 2 tablets
D. 4 tablets
🔴 Explanation: Divide the ordered dose by the available dose: 500 mg ÷
250 mg = 2 tablets.
Convert 3/8 to a decimal.
A. 0.25
B. 0.333
🟢 C. 0.375
D. 0.75
🔴 Explanation: Divide 3 by 8. 3 ÷ 8 = 0.375.
What is the value of Roman numeral XIV?
A. 9
B. 11
C. 13
🟢 D. 14
,🔴 Explanation: X represents 10, and IV represents 4. Combining them
gives 10 + 4 = 14.
Solve: 12.4 + 3.65 - 2.1
A. 13.85
B. 13.95
🟢 C. 13.95 (Wait, let's calculate: 12.4 + 3.65 = 16.05. 16.05 - 2.1 = 13.95).
Let's list options: A. 12.95, 🟢 B. 13.95, C. 14.05, D. 14.15.
🔴 Explanation: Align the decimal points: 12.40 + 3.65 = 16.05, then
subtract 2.10 to result in 13.95.
If a vehicle travels 180 miles in 3 hours, what is its average speed in miles
per hour?
A. 50 mph
🟢 B. 60 mph
C. 70 mph
D. 90 mph
🔴 Explanation: Divide the total distance by the total time: 180 miles ÷ 3
hours = 60 mph.
What is the square root of 144?
A. 10
B. 11
🟢 C. 12
D. 14
🔴 Explanation: 12 multiplied by 12 equals 144.
Convert 98.6 degrees Fahrenheit to Celsius using the formula C = (F - 32) *
5/9.
A. 35.0 C
🟢 B. 37.0 C
C. 38.2 C
D. 39.1 C
🔴 Explanation: Subtract 32 from 98.6 to get 66.6, multiply by 5 (333), and
divide by 9 to get 37.0 degrees Celsius.
What is 7/12 minus 1/4?
A. 1/6
🟢 B. 1/3
C. 5/12
D. 1/2
🔴 Explanation: Convert 1/4 to 3/12. Then subtract: 7/12 - 3/12 = 4/12,
which simplifies to 1/3.
Express 0.045 as a fraction in simplest form.
A. 9/200
, 🟢 B. 9/200 (Wait, let's verify: 45/1000 = 9/200). Let's put B as correct.
C. 1/45
D. 45/100
🔴 Explanation: Write 0.045 as 45/1000 and divide both numerator and
denominator by 5 to get 9/200.
Solve for x: 3(x + 4) = 21
A. 2
🟢 B. 3
C. 4
D. 7
🔴 Explanation: Divide both sides by 3 to get x + 4 = 7, then subtract 4 to
find x = 3.
What is the ratio of 15 to 45 in simplest form?
A. 1:2
B. 1:4
🟢 C. 1:3
D. 3:1
🔴 Explanation: Divide both numbers by their greatest common divisor, 15.
15 ÷ 15 = 1 and 45 ÷ 15 = 3.
A nurse needs to prepare 1 liter of a solution. How many milliliters is this?
A. 100 mL
🟢 B. 1,000 mL
C. 10,000 mL
D. 100,000 mL
🔴 Explanation: By definition, 1 liter is equivalent to 1,000 milliliters.
Calculate 4.5 multiplied by 2.2.
A. 8.9
B. 9.0
🟢 C. 9.9
D. 10.1
🔴 Explanation: Multiply 45 by 22 to get 990, then place the decimal two
places inward to get 9.9.
What is 7 squared plus 3 cubed?
A. 58
B. 60
🟢 C. 70
D. 76
🔴 Explanation: 7 squared is 49, and 3 cubed is 27. 49 + 27 = 76.
If 4 pens cost $6.00, how much do 10 pens cost?
A. $12.00