764 LearnersLast updated on May 26th, 2025
21 Times Table
Table of 21 consists of the multiples of the number 21 when multiplied by numbers. This table helps in fast multiplication in larger numbers. Below are facts about the table of 21.
What is a Multiplication Table of 21?
Table of 21 is one of the most advanced and easy-to-learn two-digit multiplication tables.
- Table of 21 is a structured list that helps the learner calculate the multiples of 21.
- The pattern in the table of 21 is the repeated addition of 21 and keeps increasing as 21, 42, 63, 84, 105, 126, 147, 168, 189, 210…
- The digits at one’s place follow the pattern of 1, 2, 3, 4, 5, 6, 7, 8, 9, and 0.
- The digits at the ten’s place till multiple 9, 2 is skipped and products are even, from multiple 10 to 19 the odd number pattern is followed, this pattern continues further.
21 Times Table Chart
The table of 21 is easy to understand and learn and does not require time to comprehend. However, practicing it regularly helps the learner to understand the pattern.
Here is the table of 21 from the multiples 1 to 10 and 11 to 20.
| TABLE OF 21 (1-10) | |
|---|---|
|
21 x 1 = 21 |
21 x 6 = 126 |
|
21 x 2 = 42 |
21 x 7 = 147 |
|
21 x 3 = 63 |
21 x 8 = 168 |
|
21 x 4 = 84 |
21 x 9 = 189 |
|
21 x 5 = 105 |
21 x 10 = 210 |
| TABLE OF 21 (11-20) | |
|---|---|
|
21 x 11 = 231 |
21 x 16 = 336 |
|
21 x 12 = 252 |
21 x 17 = 357 |
|
21 x 13 = 273 |
21 x 18 = 378 |
|
21 x 14 = 294 |
21 x 19 = 399 |
|
21 x 15 = 315 |
21 x 20 = 420 |
Tips and Tricks for the Multiplication Table of 21
Multiplication tables are fundamental for developing math skills. Some tips and tricks for Table of 21 are listed below.
- 21 can be divided into 10.5 to ease the multiplication and then doubled to get the product of table of 21.
- The digits at one’s place follow the pattern of 1, 2, 3, 4, 5, 6, 7, 8, 9, and 0 and can be used to check the correctness of table of 21.
- Breaking down of the table of 21 can be done to simplify the multiplication.
- By adding 21 to the products of Table of 20 the products of Table of 21 can be found.
Common Mistakes and How to Avoid Them in 21 Times Tables
While learning the table of 21, it is possible to commit mistakes. You can avoid making these mistakes by being more careful in the area mentioned below.
Mistake 1
Performing addition instead of multiplication.
It should be kept in mind that multiplication is repeated addition of the multiplicand.
21 Times Table Examples
Problem 1
There are 21 benches in a class. What is the number of benches in 24 classrooms?
Number of benches in a class = 21 benches
Number of classrooms = 24 classrooms
Total number of benches = Number of benches in a class x Number of classrooms
21 x 24 = 504.
504 benches.
Explanation
The number of benches in a class multiplied by the number of classrooms would be the total number of benches, 21 x 24 = 504.
Problem 2
21 liters of water is used by a person per day. How many liters of water do 17 people need?
Liters of water per person = 21 liters
Total number of people = 17 people
The total liters of water = Liters of water per person x Total number of people
21 x 17 = 357
357 liters of water.
Explanation
Liters of water per person multiplied by the total number of people would be the total liters of water, 21 x 17 = 357.
Problem 3
There are 21 candies in a box if there are 250 boxes, how many candies are there in total?
Number of candies in one box = 21 candies
Number of boxes = 250 boxes
Total number of candies = Number of candies in one box x Number of boxes
21 x 250 = 5250
5250 candies.
Explanation
The number of candies in one box multiplied by the number of boxes would be The total number of candies. 21 x 250 = 5250.
FAQs on 21 Times Table
1.Explain a method to memorize the table of 21.
2.What is the pattern followed by the table of 21?
3.How can I use Table of 20 to find products of Table of 21?
4.How can we use the breaking down method on 21 x 33?
5.How to practice Table of 21?
6.How can poems help children in Singapore memorize the Multiplication Table and 21 Times Table?
7.Can learning the Multiplication Table influence creativity in solving 21 Times Table challenges for kids in Singapore?
8.How do language and cultural differences in Singapore affect the way children learn the Multiplication Table and 21 Times Table?
9.What role does brain development play in mastering the Multiplication Table and 21 Times Table among early learners in Singapore?
Important Glossaries for Multiples of 21
- Factor: Factors are the numbers that can be multiplied to get a product.
- Repeated addition: addition by 21, forming a pattern with equal intervals.
- Breaking down: The multiple is broken down into simpler forms.
- Multiple: The number that can be evenly divided by another number.
- Product: The result obtained when multiplication is performed.
- Carryover digit: Extra digit added in ten’s place when two-digit multiplication is done.
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About BrightChamps in Singapore
Seyed Ali Fathima S
About the Author
Seyed Ali Fathima S a math expert with nearly 5 years of experience as a math teacher. From an engineer to a math teacher, shows her passion for math and teaching. She is a calculator queen, who loves tables and she turns tables to puzzles and songs.
Fun Fact
: She has songs for each table which helps her to remember the tables
