What is Twenty-Five?

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Grade Level:

Pre-School – Class 2

All domains without exception

Definition

What is it?

Twenty-Five is a number that comes after Twenty-Four and before Twenty-Six. It is a natural number, which means it is used for counting things. We write it using the digits 2 and 5.

Simple Example

Quick Example

Imagine you have 25 rupees in your pocket. This is enough to buy a small packet of biscuits or a cup of chai from the local shop. So, 25 is a specific quantity of money.

Worked Example

Step-by-Step

Let's say you want to count 25 mangoes.
1. Start counting from 1: one, two, three...
---2. Keep counting until you reach the number twenty-four.
---3. The very next number you count after twenty-four is twenty-five.
---4. So, if you have counted 25 mangoes, you have exactly this many: 1, 2, 3, ..., 24, 25.
Answer: You have reached the count of twenty-five.

Why It Matters

Understanding numbers like twenty-five is fundamental to all of mathematics and science. It's used everywhere from managing your pocket money to calculating scores in cricket. Engineers, scientists, and even shopkeepers use numbers constantly in their daily work.

Common Mistakes

MISTAKE: Confusing twenty-five with fifty-two. | CORRECTION: Remember that 'twenty' means two tens, so it starts with a 2 (25). 'Fifty' means five tens, so it starts with a 5 (52).

MISTAKE: Writing 'twenty five' as one word 'twentyfive'. | CORRECTION: When writing numbers out in words, hyphenate compound numbers between twenty-one and ninety-nine, so it's 'twenty-five'.

MISTAKE: Not understanding that 25 is also 5 multiplied by 5. | CORRECTION: While 25 is a simple count, it's also a product of multiplication (5 x 5) and a perfect square.

Practice Questions

Try It Yourself

QUESTION: If you have 20 marbles and your friend gives you 5 more, how many marbles do you have in total? | ANSWER: 25 marbles

QUESTION: A cricket match starts at 2:00 PM. If it lasts for 2 hours and 25 minutes, at what time will it finish? | ANSWER: 4:25 PM

QUESTION: Your mom bought 3 packets of biscuits. Each packet has 8 biscuits. If you eat one biscuit, how many biscuits are left? Is the total number of biscuits you started with (before eating) exactly twenty-five? | ANSWER: 23 biscuits left. No, you started with 24 biscuits (3 x 8 = 24), not 25.

MCQ

Quick Quiz

Which of the following represents the number twenty-five?

205

The Correct Answer Is:

Option C, '25', is the correct numerical representation for the word 'twenty-five'. The other options represent different numbers.

Real World Connection

In the Real World

In India, you might see '25% off' signs during sale season at your favourite clothing store, meaning a quarter of the price is reduced. Or, your mobile data plan might give you 25 GB of data per month. These are all practical uses of the number twenty-five.

Key Vocabulary

Key Terms

NUMBER: A count or measure | DIGIT: A single symbol used to write numbers (like 0, 1, 2...) | NATURAL NUMBER: A number used for counting (1, 2, 3...) | QUANTITY: How much of something there is

What's Next

What to Learn Next

Now that you understand what twenty-five is, you can explore larger numbers and how they are used in addition, subtraction, multiplication, and division. Keep practicing, and you'll master numbers in no time!