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## Lesson details

### Key learning points

- In this lesson, we will solve problems involving Roman numerals. Our focus will be on, missing values in equations and correcting Roman numeral errors.

### Licence

This content is made available by Oak National Academy Limited and its partners and licensed under Oak’s terms & conditions (Collection 1), except where otherwise stated.

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### 5 Questions

Q1.

How would the number '473' be written using Roman Numerals?

CCCCLXXIII

DCLXXIII

IVVIIIII

Q2.

How would the number 'CMXXVII' be written using Arabic Numerals?

1027

127

925

Q3.

What is the difference between the numbers CD and DC?

CD refers to the 100 after 500 so it is 600 whereas DC refers to the 100 before 500 so it is 400.

CD refers to the number 60 and DC refers to the number 40

They both mean the same thing.

Q4.

Complete the following sequence using Roman Numerals: CL, CCC, CDL, _______

CD

DCX

DCXX

Q5.

Complete the following sequence using Roman Numerals: LXXX, CLX, CCXL, _______

CCC

CCCX

CCLX

### 5 Questions

Q1.

How would you write the number '982' using Roman Numerals?

DCCCCLXXXII

IXVIIIII

MCLXXXII

Q2.

What error has been made when writing the number 90 as LXXXX?

An X should not be placed after an L.

Numerals should be written in order of increasing size so it should be written XXXXL.

You are not allowed to place an X next to an L.

Q3.

3. What could the missing values in the following equation be: ______ + _______ = CCC?

C + C

CC + CC

L + L

Q4.

4. What is the missing value from the equation: _______ + DCLV = DCCCXC

CCCIIV

CCIIIV

CCXXXI

Q5.

Which of the following is the correct way to write: 435 using Roman Numerals?

CCCCXXXV

DCXXXV

IVIIIV