I've learned some roman numbers, can you please check if I got them right?

1-10:
1: I
2: II
3: III
4: IV
5: V
6: VI
7: VII
8: VIII
9: IX
10: X

11-20:

11: XI
12: XII
13: XIII
14: XIV
15: XV
16: XVI
17: XVII
18: XVIII
19: XIX
20: XX

Please check if it is right or wrong :(

I believe you're right.

Thx! Sorry im late

Yes, you have the Roman numerals for 1-10 correct. Well done! Here's a brief explanation of each numeral:

1: The Roman numeral for 1 is represented by the letter "I".
2: The numeral for 2 is represented by two "I"s together, which is written as "II".
3: Similarly, three "I"s together represent the Roman numeral for 3, which is written as "III".
4: To represent the number 4, the Romans used a combination of generating 5 by adding "I" (which is 5-1) to create "VI".
5: The Roman numeral for 5 is represented by the letter "V".
6: By adding the numeral for 1 ("I") to the numeral for 5 ("V"), we get 6, which is denoted by "VI".
7: To represent 7, the Romans added two "I"s to the numeral for 5, resulting in "VII".
8: Continuing the pattern, the Roman numeral for 8 is represented by "VIII".
9: Here, the Romans wrote 10-1 as "IX" to represent the number 9.
10: Finally, the Roman numeral for 10 is represented by the letter "X".

Remember, if you have any more questions or need further explanations, feel free to ask!