S1-SA1-0012
What is One Thousand (1,000)?
Grade Level:
Class 3
Maths, Computing, Finance
Definition
What is it?
One Thousand, written as 1,000, is a number that comes after 999. It is the smallest four-digit number. It represents ten hundreds or one thousand individual units.
Simple Example
Quick Example
Imagine you are collecting stickers. If you have 999 stickers and then get just one more sticker, you will now have 1,000 stickers! This is a big collection.
Worked Example
Step-by-Step
Let's find out how many groups of 100 make 1,000.
1. Start with 100.
2. Add another 100: 100 + 100 = 200
3. Add another 100: 200 + 100 = 300
4. Keep adding 100 until you reach 1,000.
5. You will add 100 ten times: 100 + 100 + 100 + 100 + 100 + 100 + 100 + 100 + 100 + 100 = 1,000.
6. So, ten groups of 100 make 1,000.
Answer: Ten groups of 100 make 1,000.
Why It Matters
Understanding 1,000 helps us count larger quantities and manage money. It's crucial for careers in banking, engineering, and even managing a small shop, where you deal with quantities and costs daily.
Common Mistakes
MISTAKE: Writing 1000 as 100,0 (missing a zero or comma) | CORRECTION: Always remember it has three zeros after the 1, written as 1,000.
MISTAKE: Thinking 1,000 is the same as 100 | CORRECTION: 1,000 is ten times bigger than 100. It's a much larger number.
MISTAKE: Not understanding that 1,000 is the first four-digit number | CORRECTION: The smallest three-digit number is 100. The largest three-digit number is 999. Adding 1 to 999 gives 1,000, which has four digits.
Practice Questions
Try It Yourself
QUESTION: If you have 500 rupees and your friend gives you another 500 rupees, how much money do you have in total? | ANSWER: 1,000 rupees
QUESTION: A box contains 10 packets of biscuits. Each packet has 100 biscuits. How many biscuits are there in total in the box? | ANSWER: 1,000 biscuits (10 x 100 = 1,000)
QUESTION: Your school library wants to collect 1,000 storybooks. They already have 750 books. How many more books do they need to reach their goal? | ANSWER: 250 books (1,000 - 750 = 250)
MCQ
Quick Quiz
Which of these numbers is equal to 1,000?
Ten hundreds
One hundred tens
One thousand ones
All of the above
The Correct Answer Is:
D
1,000 is indeed ten hundreds (10 x 100), one hundred tens (100 x 10), and one thousand ones (1000 x 1). All options correctly describe 1,000.
Real World Connection
In the Real World
In India, you see 1,000 everywhere! When you buy groceries, you might spend 1,000 rupees. Cricket stadiums can hold thousands of fans. Your mobile data plan might give you 1,000 MB (1 GB) of data. It's a very common number in daily life.
Key Vocabulary
Key Terms
DIGIT: A single symbol used to write numbers (0, 1, 2, 3, 4, 5, 6, 7, 8, 9) | PLACE VALUE: The value of a digit based on its position in a number | FOUR-DIGIT NUMBER: A number that has four digits, like 1,000 | HUNDREDS: A group of 100 units
What's Next
What to Learn Next
Now that you understand 1,000, you are ready to explore larger numbers like 10,000 and 1,00,000 (one lakh). These concepts build on understanding place value and how numbers grow, helping you count even bigger things!


