Introduction
A five-digit number is formed when we reach beyond 9,999. By adding 1 to the largest four-digit number (9,999), we get 10,000 (Ten Thousand), which is the smallest five-digit number.
Explanation Step by Step
Every digit in a five-digit number has a specific position. Understanding these positions is key to mastering number knowledge.
| Place Name | Ten-Thousands (T.Th) | Thousands (Th) | Hundreds (H) | Tens (T) | Units (U) |
|---|---|---|---|---|---|
| Value | 10,000 | 1,000 | 100 | 10 | 1 |
Sub-topics
Reading and writing numbers up to five digits
To read a five-digit number, we read the digits in the Ten-thousands and Thousands places together as a single number of thousands.
Examples
Example 1: Writing in words
Example 2: Writing in figures
Tricks and Shortcuts
The Period Rule: Always place a comma after the first three digits from the right. The digits to the left of the comma represent the "Thousands" family. Example: 56,789 is Fifty-six Thousand...
Common Mistakes
When there is a zero in the middle of a number (like 50,230), students often forget to account for that place. Ensure you don't say "Five thousand" for a five-digit number starting with 5.
Practice Questions
Easy Questions
- Read and write in words: 11,000
- Write the number: Twenty-five thousand three hundred.
- What is the value of 5 in 54,321?
Medium Questions
- Write the expanded form of 67,890.
- Form the greatest five-digit number using 3, 8, 1, 9, 4.
- Identify the digit in the Ten-thousands place in 82,104.
Hard Questions
- What is the difference between 10,000 and 9,999?
- Write a five-digit number that has 0 in the hundreds and units place.
- Write the predecessor (number before) and successor (number after) of 99,999.
Revision Summary
Five-digit numbers consist of places up to Ten-thousands. Always use commas for clarity and remember that 10,000 is the smallest and 99,999 is the largest five-digit number.