How to Write 1 in Roman Numerals?

Writing 1 in Roman numerals is quite simple once you grasp the fundamentals. Roman numerals use a series of letters to represent numbers, and for 1, the symbol is I. This symbol is the smallest in the Roman numeral system and is used to represent a single unit. Unlike numbers such as 4 (IV) or 9 (IX), 1 stands alone without any additional symbols for subtraction or addition. Learning Roman numerals can be a fun and educational process, giving you insight into ancient numbering systems. Let’s begin by exploring how to write 1 in Roman numerals and its significance.

Roman Numerals 1 to 1000: Download Free PDF

How to Write 1 in Roman Numerals?

To write 1 in Roman numerals, you use the letter I. This symbol represents a single unit and is the simplest numeral in the Roman numeral system. There’s no need for any additional combinations or calculations for this number. It stands alone as the basic building block of Roman numerals.

Number	Roman Numeral
1	I

How to Convert I to Number

To convert I from Roman numerals to a number, you simply need to know the value of the Roman numeral I, which is 1. Roman numerals are made up of seven symbols (I, V, X, L, C, D, M), and each has a fixed value. The symbol I represent the smallest unit in this system.

I = 1 So, if you see I alone, it directly represents the number 1

Read about Roman Numerals from 1 to 10 here:

1 in Roman Numerals	6 in Roman Numerals
2 in Roman Numerals	7 in Roman Numerals
3 in Roman Numerals	8 in Roman Numerals
4 in Roman Numerals	9 in Roman Numerals
5 in Roman Numerals	10 in Roman Numerals

Exercise on 1 in Roman Numerals

Let us practice some questions on Roman Numerals here.

Addition and Subtraction

Add/subtract the following numbers and answer in Roman Numerals

1. 50 + 1 = ___ 
2. 100 – 1 = ___ 
3. 100 + 1 = ___ 
4. 111 – 1 = ___

Answers:

1. 50 + 1 = LI
2. 100 – 1 = CIX
3. 100 + 1 = CI
4. 111 – 1 = CX

Convert to Roman Numerals

Convert the following numbers into Roman numerals:

1. 101
2. 151
3. 111
4. 11

Answers:

1. 101 = CI
2. 151 = CLI
3. 111 = CXI
4. 11 = XI

Convert to Numbers

Convert the following Roman numerals to numbers:

1. CX
2. CI
3. XI
4. IX

Answers:

1. CX = 110
2. CI = 101
3. XI = 11
4. IX = 9

Match the Following

Match the following numbers to Roman numerals:

Numbers	Roman Numerals
(i) 111	(a) CCX
(ii) 210	(b) CX
(iii) 110	(c ) CXI
(iv) 11	(d) XI

Answers:

(i) 111 = (c) CXI

(ii) 210 = (a) CCX

(iii) 110 = (b) CX

(iv) 11 = (d) XI

Learn about other Roman Numerals here:

11 in Roman Numerals	20 in Roman Numerals
12 in Roman Numerals	30 in Roman Numerals
13 in Roman Numerals	40 in Roman Numerals
14 in Roman Numerals	50 in Roman Numerals
15 in Roman Numerals	60 in Roman Numerals
16 in Roman Numerals	70 in Roman Numerals
17 in Roman Numerals	80 in Roman Numerals
18 in Roman Numerals	90 in Roman Numerals
19 in Roman Numerals	100 in Roman Numerals

FAQs

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