Multiplication Table of 81 in Maths - Multiplication Table of Eighty One - Free PDF Download
Up to which number you have learnt the multiplication table, 15 or 20? Though your teacher might advise you to learn the table till 20, we advised you to learn as many tables as you can. We know learning a table is a bit difficult and complex task. But what if we share some amazing trick to memorise the table of 81 in a fraction of seconds?
Eager? Ok, let us start with some points related to table 81, and then we will learn some amazing tricks to learn the table of odd number 81. We also solve some numerical problems related to it. Now waiting for what? Let's start.
Key Points to Know About Multiplication Table of 81
The unit digit of every multiple of 81 is the unit digit of the multiplicand itself. For example, the unit digit of the 5th multiple of 81 is 5, or the unit digit of the 7th multiple of 81 is 7.
We can write the multiplication table of 81 using the process of repetitive addition.
For example, 2 times 81 is 2 x 81 = 162, which is equal to adding 81 two times, i.e., 81 + 81 = 162.
Let us take another example: 8 times 81 is 8 x 81 = 648, which is equal to 81 + 81 + 81 + 81 + 81 + 81 + 81 + 81 = 648.
Table Chart of 81 from 1 to 10
Now let's read the multiplication table of 81 from 1 to 10.
81 × 1 = 81 | 81 × 6 = 486 |
81 × 2 = 162 | 81 × 7 = 567 |
81 × 3 = 243 | 81 × 8 = 648 |
81 × 4 = 324 | 81 × 9 = 729 |
81 × 5 = 405 | 81 × 10 = 810 |
Tips and Tricks to Memorise the Table of 81
There are numerous easy tricks to memorise the table of 81, some of them are given below.
The first trick is to read the table aloud as much as you can, and as many times as you can. It will fix the rhythm and related numbers to your mind.
Another trick is followed by the students who are masters in addition. To get one after the other multiple of 81, you need to add the previous result with 81 in mind. Find below the process to follow:
Multiple of 81 | Addition Process | Multiplication Table of 81 |
81 x 1 | 81 | 81 |
81 x 2 | 81 + 81 = 162 | 162 |
81 x 3 | 162 + 81 = 135 | 243 |
81 x 4 | 243 + 81 = 180 | 324 |
81 x 5 | 324 + 81 = 225 | 405 |
81 x 6 | 405 + 81 = 270 | 486 |
81 x 7 | 486 + 81 = 315 | 567 |
81 x 8 | 567 + 81 = 360 | 648 |
81 x 9 | 648 + 81 = 405 | 729 |
81 x 10 | 729 + 81 = 810 | 810 |
We know that you might have heard about the above given tricks and are looking for something different. Well, do not get upset. Just look at the below-given trick.
Table of 81 = Write Together Table of 8 and Table of 1
To understand this trick, just go through the table given below.
Table of 8 (Hundreds and Tens digit) | Table of 1 (Unit digit) | Table of 81 |
8 | 1 | 81 |
16 | 2 | 162 |
24 | 3 | 243 |
32 | 4 | 324 |
40 | 5 | 405 |
48 | 6 | 486 |
56 | 7 | 567 |
64 | 8 | 648 |
72 | 9 | 729 |
- | - | 810 |
This trick includes the multiplication table of 8 and multiplication table of 1 and writing their respective multiples together as written in the above-given table chart. This is a super amazing trick, and we hope you liked it!
How to Solve Questions Based on Table 81?
Now, let's solve some numerical problems based on the multiplication table of 81.
Word Problems on Table 81 with Practice Questions
Question 1: Nobita gives 81 candies to Doraemon, Shizuka, Takeshi, Suneo, and Dorami. How many candies does she give in total to her friends?
Ans: Number of Nobita’s friends = 5
He gave 81 candies to each of her friends.
Therefore, number of candies in total she gives = 5 x 81 = 405
Question 2: Noddy takes the ride of town daily of 81 km. How much distance will he travel in 9 days?
Ans: In each day, Noddy travels 81 km.
Therefore, total distance he will travel in 9 days = 81 x 9 = 729
Practice Questions
1. Madhvvi put 81 pieces of pickle in each box. How many pickles will she put in 20 boxes?
Answer: 1620
2. If 1 basket contains 6 oranges, how many oranges will be there in 81 baskets?
Answer: 486
MCQs on Table 81 with Practice Questions
1. What is the 7th multiple of 81?
617
567
627
517
Ans: (b)
81 x 7 = 567
Practice Question
Jethalal sells 81 refrigerators in a week. How many refrigerators will he sell in 5 weeks?
a) 405
b) 305
c) 505
d) 495
Answer: (a)
Table Chart of 81 from 11 to 20
To keep the multiple of 81 on your tips, it is useful if you can remember the table from 11 to 20 as well. Refer to the image given below, the same is provided in the PDF, which can be easily downloaded and printed.
81 × 11 = 891 | 81 × 16 = 1296 |
81 × 12 = 972 | 81 × 17 = 1377 |
81 × 13 = 1053 | 81 × 18 = 1458 |
81 × 14 = 1134 | 81 × 19 = 1539 |
81 × 15 = 1215 | 81 × 20 = 1620 |
For Teachers/Parent: How to Read the Table to Your Kids
Reading a table repetitively with your kids is the best practice to memorise a table. It not only helps them to memorise but also makes them enjoy this learning activity.
Below given is the table of 81 written for your ease to read it properly.
Eighty-one ones are Eighty-one
Eighty-one twos are One hundred and sixty-two
Eighty-one threes are Two hundred and forty-three
Eighty-one fours are Three hundred and twenty-four
Eighty-one fives are Four hundred and five
Eighty-one sixes are Four hundred and eighty-six
Eighty-one sevens are Five hundred and sixty-seven
Eighty-one eights are Six hundred and forty-eight
Eighty-one nines are Seven hundred and twenty-nine
Eighty-one tens are Eight hundred and ten
We have also provided the PDF of table 81 to revise the table offline. You can download it at absolutely no cost. Using this PDF, you can revise the table of 81 anytime and anywhere. So, learn the table of 81 and solve the complex problems related to 81 in a fraction of seconds. If you want to learn more tables with such amazing tricks, explore our websites.
FAQs on Table of 81 - Multiplication Table of 81
1. Write any 5 multiples of 81.
81, 162, 243, 324, and 405 are the 5 multiples of 81.
2. What are the rules followed by a multiplication table of 81?
The multiplication table of 81 follows the rule of repetitive addition like any other table. For example, 5th multiplication of 81 is equal to 81 x 5 = 405 which is equivalent to adding 81 five times, i.e., 81 + 81 + 81 + 81 + 81 = 405.