So, the question at hand is whether we should say “25th” or “25rd” when referring to the ordinal number for the number 25. Well, I’m here to shed some light on this topic and provide a clear answer.

First of all, let me clarify what an ordinal number is. It is a number that denotes the position or order of something in a series. For example, “first,” “second,” “third,” and so on. When we write an ordinal number, we usually add a suffix to the cardinal number, such as “st,” “nd,” “rd,” or “th.”

Now, let’s focus on the number 25. When we want to express its ordinal form, the correct answer is “25th.” We use the suffix “th” to indicate the position in a sequence. Here’s why:

In English, the suffix “-th” is commonly used for most ordinal numbers. Think about it – we say “ninth,” “tenth,” “eleventh,” “twelfth,” “thirteenth,” and so on. It’s a pattern that we follow for numbers greater than 3 (excluding 11, 12, and 13, which have their unique forms).

On the other hand, the suffixes “st,” “nd,” and “rd” are only used for the ordinal numbers 1, 2, and 3, respectively. We say “first,” “second,” and “third.” After that, we use the suffix “-th.”

Let me illustrate this with some examples to make it crystal clear:

– 1 (cardinal) –> 1st (ordinal)

– 2 (cardinal) –> 2nd (ordinal)

– 3 (cardinal) –> 3rd (ordinal)

– 4 (cardinal) –> 4th (ordinal)

– 10 (cardinal) –> 10th (ordinal)

– 25 (cardinal) –> 25th (ordinal)

– 100 (cardinal) –> 100th (ordinal)

As you can see, regardless of how large the number is, we always use “-th” as the suffix for expressing the ordinal form.

To summarize, when it comes to the number 25, the correct ordinal form is “25th.” It follows the general rule of using “-th” as the suffix for most ordinal numbers in English.

Just remember this simple rule: use “st,” “nd,” and “rd” for 1st, 2nd, and 3rd only, and use “-th” for all other numbers.

Now that we have settled this matter, you can confidently use “25th” when referring to the ordinal number for 25. Keep practicing and expanding your knowledge of English grammar, as it will undoubtedly benefit you in your future endeavors!