Roman numerals

chris cambré, Wellerson Davi, Jul 8, 2018

Explore the Roman numerals, write, convert and make summations.

Table of Contents

  1. writing and converting
    1. converting Roman numerals
    2. converting to Roman numerals
    3. constructing Roman numerals
    4. exercise: convert
    5. exercise: write
    6. combine the equal numbers
  2. test the basics
    1. Combine the natural numbers with Roman numerals
    2. greater than or smaller than?
    3. one more is...
    4. one less is...
    5. add the two numbers
  3. summation of Roman numerals
    1. example 1
    2. example 2
    3. exercise: adding Roman numerals
    4. exercise: adding Roman numbers
    5. Give the sum
    6. Give the missing number

1.

writing and converting

How works the Roman number system? This chapter shows conversions between natural numbers as we know them and the Roman way of writing them. If you understand how it works, you can exercise yourself.

  • 1. converting Roman numerals
  • 2. converting to Roman numerals
  • 3. constructing Roman numerals
  • 4. exercise: convert
  • 5. exercise: write
  • 6. combine the equal numbers

1.1.

converting Roman numerals

– chris cambré

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2.

test the basics

Where does each Roman numeral stand for? Get familiar with the numerals in some basic exercises.

  • 1. Combine the natural numbers with Roman numerals
  • 2. greater than or smaller than?
  • 3. one more is...
  • 4. one less is...
  • 5. add the two numbers

2.1.

Combine the natural numbers with Roman numerals

Drag the blue squares with the natural numbers from 1 to 10 to the white rectangles of the according Roman numerals.[br]Clicking on the control button sets the wrong placed blue squares back to their initial position. Well combined blue squares hold their place. The reset button sets all blue squares back to their initial position and shuffles the Roman numerals.
– chris cambré

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3.

summation of Roman numerals

Of course you can make calculations with Roman numerals to. Show how it works and exercise yourself. First the way the summation is done is illustrated on an abbacus. Then you can exercise on the abbacus and finally you can make exercises on summation without an abbacus.

  • 1. example 1
  • 2. example 2
  • 3. exercise: adding Roman numerals
  • 4. exercise: adding Roman numbers
  • 5. Give the sum
  • 6. Give the missing number

3.1.

example 1

Drag the slider up and see how Roman numerals are added.
original created by Steve Phelps.
– chris cambré

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3.6.

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