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,HESI A2 (NURSING ADMISSION TEST) NEW FILE TESTED- 2023 MATH
HESI Mathematics Roman
Numerals
Roman numerals is the ancient number system used in the Roman Empire. In select situations,
they are still used as an alternative to the modern numeral system. Roman numerals are based
on the idea of adding, and in special cases, subtracting, to represent each number. The
following table provides a list of the most commonly used Roman numerals today and their
meaning.
Roman Numeral Numerical Value
I 1
V 5
X 10
L 50
C 100
D 500
M 1000
Roman numerals are written from left to right, greatest numeral to smallest. As you read them,
add together the symbols for the numeric value.
Example:
Erica is visiting Rome for vacation. She sees an old building with “MCCLIII” written on it. What
number is this?
Looking at our reference chart, we see the first symbol, M, is 1000. CC is 100+100, L is
50, and III is 1+1+1. Adding this together shows that:
1000 + 100 + 100 + 50 + 1 + 1 + 1 = 1253 as the number on the building.
There are a few special cases where instead of adding, we subtract to find the meaning of the
Roman numeral. These special cases occur when we want to avoid stringing four instances of a