Story time 📖
Tap play and I''ll read this lesson to you like a story.
ago in , didn't with the 0–9 like we do. they used ! This is called the , and you can it — on , in , and on old .
is from just . The are the you need to to ten: I 1, V 5, and X 10.
| Roman | Number |
|---|---|
| I | 1 |
| V | 5 |
| X | 10 |
To make other , you put the in a row and add them up, . So II is 1 + 1 = 2, III is 1 + 1 + 1 = 3, and VII is 5 + 1 + 1 = 7.
the in a row. of for 4, there is a — the .
the : when a BEFORE a one, you it. So IV 'one before = 5 − 1 = 4. And IX 'one before ten' = 10 − 1 = 9.
IX is NOT . to : a before a big one it . IX = 10 − 1 = 9.
| Number | Roman | How it's built |
|---|---|---|
| 1 | I | one |
| 2 | II | 1 + 1 |
| 3 | III | 1 + 1 + 1 |
| 4 | IV | one before five (5 − 1) |
| 5 | V | five |
| 6 | VI | 5 + 1 |
| 7 | VII | 5 + 1 + 1 |
| 8 | VIII | 5 + 1 + 1 + 1 |
| 9 | IX | one before ten (10 − 1) |
| 10 | X | ten |
🃏 Flip each card to check the value. Say it out loud first!
Tap each card to see the answer.
🔗 Match each Roman numeral to its number.
II
IV
VII
IX
🧩 Put these Roman numerals in order, from smallest to biggest.
- X
- VII
- IV
- III
at an old or a — the is in . Now you can to them!
Quiz time! 📝
Roman Numbers: I to X
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