Rationales | All Core Domains Covered | A+ Graded
Exam Overview
The HESI A2 Math section assesses your ability to perform basic arithmetic, algebra, and data
interpretation. This section contains 55 questions to be completed in 50 minutes. You must
achieve a minimum score to progress in nursing programs.
Core Domains Covered:
- Basic Operations (Addition, Subtraction, Multiplication, Division)
- Fractions, Decimals & Percentages
- Ratios & Proportions
- Conversions (Metric, Household, Temperature)
- Basic Algebra & Equation Solving
- Word Problems & Medical Math
- Data Interpretation (Graphs, Tables, Charts)
- Dosage Calculations
- Roman Numerals
- Military Time
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SECTION 1: BASIC OPERATIONS
Questions 1–60
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Question 1
What is 156 + 237?
A. 383
B. 393
C. 403
D. 493
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Answer: B – 393
Rationale: 156 + 237 = 393. Add the ones: 6 + 7 = 13 (write 3, carry 1). Add the tens: 5 + 3 + 1 =
9. Add the hundreds: 1 + 2 = 3. Result: 393.
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Question 2
What is 824 – 456?
A. 358
B. 368
C. 378
,D. 468
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Answer: B – 368
Rationale: 824 – 456 = 368. Borrow from the tens: 14 – 6 = 8, 1 – 5 = 6 (borrow from hundreds),
7 – 4 = 3. Result: 368.
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Question 3
What is 47 × 23?
A. 941
B. 1,081
C. 1,091
D. 1,211
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Answer: B – 1,081
Rationale: 47 × 23 = 47 × (20 + 3) = 940 + 141 = 1,081. Alternatively, 47 × 23 = 1,081.
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, Question 4
What is 486 ÷ 6?
A. 78
B. 80
C. 81
D. 86
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Answer: C – 81
Rationale: 486 ÷ 6 = 81. 6 × 80 = 480, 6 × 1 = 6, total 486. So 486 ÷ 6 = 81.
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Question 5
What is 305 + 478?
A. 773
B. 783
C. 793
D. 883
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