Roman Numerals + Military Time in 20 Minutes (With Quiz)

Roman numerals and military time are essential skills for the HESI A2 exam. These topics appear frequently in the Math and General Knowledge sections, and mastering them can help you score higher. In this guide, we’ll break down both concepts in under 20 minutes and include a practice quiz to test your knowledge.
If you’re preparing for the HESI A2, check out our comprehensive practice test for full coverage of all exam topics.
What Are Roman Numerals?
Roman numerals are a numeral system originating from ancient Rome. They use letters from the Latin alphabet to represent numbers. Here are the basic symbols and their values:
| Symbol | Value |
|---|---|
| I | 1 |
| V | 5 |
| X | 10 |
| L | 50 |
| C | 100 |
| D | 500 |
| M | 1000 |
To read Roman numerals, add the values of the symbols from left to right. However, if a smaller symbol appears before a larger one, subtract its value instead. For example, IV = 5 - 1 = 4.
Quick Rules for Military Time
Military time, also known as the 24-hour clock, eliminates the need for AM and PM designations. Here’s how it works:
- Times from 1:00 AM to 12:59 PM are the same as standard time (e.g., 9:15 AM = 0915).
- Times from 1:00 PM to 11:59 PM add 12 to the hour (e.g., 8:15 PM = 2015).
- Midnight is 0000, and noon is 1200.
Practice Quiz
Test your knowledge with these Roman numerals and military time questions:
- What does the Roman numeral IX represent?
- Convert 7:15 PM to military time.
- What is 0915 in standard time?
- What Roman numeral corresponds to 66?
- Convert 2100 to standard time.
FAQs
1. Why are Roman numerals and military time tested on the HESI A2?
These skills are crucial in healthcare settings, where precise documentation and medication administration are required. The HESI A2 assesses your readiness for nursing and allied health programs, including these practical skills.
2. Are calculators allowed for these questions?
No, calculators are not permitted for the Math and General Knowledge sections of the HESI A2. You must solve Roman numerals and military time problems manually.
3. What’s the best way to practice?
Use timed drills and flashcards to reinforce your understanding. Take our HESI A2 practice test for realistic exam practice.
4. How many questions cover Roman numerals and military time?
The HESI A2 Math section includes 50 questions, with approximately 5-7 focused on Roman numerals and military time.
5. Can I skip these questions if I’m confident in other areas?
While skipping is allowed, mastering these topics ensures a balanced score and strengthens your overall performance.
For more study resources, check out our related posts on exam pass rates and assessment strategies.

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