Abacus Workbooks

{ For direct access to Abacus Video Playlists for convenient Learning of all Abacus concepts/methods, please Click here. }

The Videos will help you with all the Knowledge necessary in completing the Abacus Course. Yes, I have explained each & every method with the help of several examples. To benefit from that Knowledge, you will need to Practice the Abacus methods sincerely, so that you can ultimately gain from the BRAIN EXERCISE generated from it.

The Stage-wise Abacus Workbooks that I have designed will help you Practice & Progress through the Abacus Course in a step-by-step manner, with increasing level of Difficulty, which will certainly help you benefit from the BRAIN EXERCISE. You just need to be Sincere & Regular with your Abacus Practice. BRAIN EXERCISE benefits are available for people of ALL AGES.

To keep it simple & easily accessible, I have structured my Abacus Course over 5 Stages. This number is lower than the number of Levels that most other Abacus institutes offer. But frankly, the number of Levels/Stages does not matter. What matters is the way the Difficulty progression of Practice sums is designed and the Quantity of Practice sums included in the course. I have taken care of these 2 aspects while designing my Stage-wise Abacus Workbooks.

AnkMitra's Stage-wise Abacus Workbooks are available in Soft Copy form (PDF Files) as well as Hard Copy form (printed & delivered to your address). In Soft Copy form, you have the option to purchase each Stage Workbook one-by-one OR you can go for the Full Set.

To make the purchase of Workbooks experience very convenient & fast, I have now setup a proper WebStore on my own domain address: https://www.ankmitra.com/category/all-products

Individual Stage-wise Workbook PDFs, along with Full Set Workbook PDFs, are already available on the WebStore. As an introductory offer, I am bundling the Answer Keys to the respective Workbooks at NO EXTRA CHARGE. The Answer Keys will make it very convenient for Parents/Teachers to check the accuracy of their child's/student's answers. It will save them a lot of time & also help improve the accuracy for the student by helping him correct his mistakes in time.

Full Set of Abacus Workbooks in Hard Copy will also become available on the WebStore very soon. One will also be able to place orders for Abacus instrument (15-rods student Abacus) very soon.

I will also be preparing lot more Practice Sets for specific kind of Abacus & Maths sums, to help students from a wide age-group build confidence in the subjects. These Practice Sets will also be made available for purchase on the WebStore in the near future.

Best part about the WebStore is that one will receive their Workbooks in PDF immediately after purchase. As soon as you complete the purchase of Workbooks in PDF, the files will be delivered via email instantly.

OATS: Series-H: Dec'21-Jan'22: Latest Test Result & Leaderboard Rankings

 Following table has the Result for the most recently concluded Test from Series-H (November'21):

Leaderboard Position 

The Leaderboard will also be updated along with the latest Test Result. The same will reflect in the following table:

OATS: Series-G: November'21: Test-8 Result & Leaderboard FINAL Rankings

Following table has the Result for the most recently concluded Test from Series-G (November'21):

Leaderboard Position 

The Leaderboard will also be updated along with the latest Test Result. The same will reflect in the following table:

Top Rankers of AnkMitra's Online Abacus Tests Series: October'21

Meet the Top-Rankers from AnkMitra's Online Abacus Tests Series for the month of October'21. These students have managed to maintain Good Performance throughout the Series, which comprises of 8 Tests (in a month), both in terms of Accuracy & Speed. 

The Difficulty Level of the sums is pretty challenging and it demands high level of Concentration & good command over the Abacus to achieve good scores. And the following students proved to be the most Consistent throughout the Series.

For overall Result of the Tests Series, click here.

 { All Abacus Learners are welcome to participate in AnkMitra's Online Abacus Tests Series. The main aim of conducting these monthly Tests Series (8 Tests in every Monthly Series) is to encourage the Learners to practice Abacus regularly, which will ultimately help them benefit from the Brain Exercise generated. By conducting in a Competition-like format, I am trying to make it exciting for all the participants to try & improve their performance over a period of time.

If interested, WhatsApp me on: +91-9271296105  or Email at: ankmitra.maths@gmail.com }

OATS (Series-F3): Latest Test Result & Leaderboard Status

We have started the latest Online Abacus Tests Series on the 13th of October'21. The Difficulty Level in Series-F is pretty challenging & a participant needs to have good command over use of all the Abacus methods as well as excellent Concentration Level while solving the Test, to be able to achieve good score.

Each Test comprises of a total of 36 sums, distributed in 5 Sections, with Total Marks of 120. It covers all kinds of sums from Addition, Subtraction, Multiplication & Division. Section-E is the most challenging one, which has Addition & Subtraction Mix sums for 8 or 9 numbers of 3-digits each. Good accuracy in this Section-E can help a participant score 42 Marks from 6 challenging sums.

With each New Test, students are getting more & more Abacus Practice, helping them improve their Confidence & Performance. And the indirect benefit of Brain Exercise will automatically help them improve their overall abilities.

The following table has the Result of the most Recently concluded Test in the Series:

Leaderboard Status

Based on the Points scored by each Participant in every New Test, their Total will change and based on these Totals, their positions could change. As soon as I update the details in my Spreadsheet, it will become visible here.

OATS (Series-F2): Latest Test Result & Leaderboard Status

The following table has the Result of the most Recently concluded Test in the Series:

Leaderboard Status

As soon as I update the details in my Spreadsheet, it will become visible here.

OATS (Series-F): Latest Test Result & Leaderboard Status

 The following table has the Result of the most Recently concluded Test in the Series:

Leaderboard Status

As soon as I update the details in my Spreadsheet, it will become visible here.

OATS (Series-E): Latest Test Result & Leaderboard Status

The following table has the Result of the most Recently concluded Test in the Series:

Leaderboard Status

As soon as I update the details in my Spreadsheet, it will become visible here.

Puzzle of the Day - 1st June 2019.

My uncle Khurana has two pets namely Aishwarya (a beautiful cat) and Brunu (a dangerous dog). When we reached his home, he told us that he is going to tell us the story of his pets, but in the language of numbers and if you are able to understand what I meant by that number, then I will believe that I have intelligent nephews.

He said '816321' which means 'the brown dog frightened the cat', '64851' means 'the frightened cat ran away'. '7621' means 'the cat was brown' and '341' means 'the dog ran'.

Then, he say now, tell me what will I say for 'the dog was frightened'?

( Note: Please send your answers only on WhatsApp at +91-9271296105 or via email at: ankmitra.maths@gmail.com. Please send your answers till 6 pm on 2nd June 2019. )

Puzzle of the Day - 31st May 2019

Here is today's Puzzle. Let's see who all can solve this one:


Three Goddesses were sitting in an old India Temple. Their names were Truth (always telling the truth), Lie (always lying) and Wisdom (sometimes lying).

A visitor asked the one on the left, "Who is sitting next to you?"

"Truth", she answered.

Then he asked the one in the middle, "Who are you?"

"Wisdom", she answered.

Lastly he asked the one on the right, "Who is your neighbour?"

"Lie", she answered.

Then it became clear as to Who is Who.

Can you determine who is telling the truth? Please tell the name of all the three in the following sequence:
Left - ?
Middle - ?
Right - ?


( Note: Please send your answers only on WhatsApp at +91-9271296105 or via email at: ankmitra.maths@gmail.com. Please send your answers till 6 pm on 1st June 2019. )

Puzzle of the Day - 30th May 2019

Before sleeping Ken realised that he had to complete a novel to be discussed in his English class the next day. So, he decided to read that novel. When he started to read the novel, the lights went off and it was around 2 in the night. Ken lighted 2 candles of equal length but one is thicker than the other. The thick candle is supposed to last six hours and the thin one three hours. When he finally went to sleep, the thick candle was twice as long as the thin one.

Can you determine how long did Ken read in candle light?



( Note: Please send your answers only on WhatsApp at +91-9271296105 or via email at: ankmitra.maths@gmail.com )

Puzzle of the Day - 29th May'19

In Delhi, there are three Bus routes: 1, 2 and 3 between Anand Vihar and Faridabad. Route 1 has intermediate stops at Badarpur and Dilshad Garden. Route 2 has stops at Chanakyapuri and Dilshad Garden. The shortest Route 3 with a length of 10 km stops at Chanakyapuri only, which is exactly in the middle of this route. The longest route has 3 km more length than the shortest one. The distance between Chanakyapuri and Dilshad Garden, Badarpur and Dilshad Garden, and Faridabad and Dilshad Garden are 4, 3 and 2 km respectively.

Can you determine what is the distance between Anand Vihar and Badarpur?


( Note: Please send your answers only on WhatsApp at +91-9271296105 or via email at: ankmitra.maths@gmail.com )

Puzzle of the Day - 28th May'19.

Business is booming in the 'Sunset Vue' Bar, where the customers really enjoy the 'Make a Sum' game that barman and philosophy student Carlo sets up for them with coasters. Here's another chance to play. Carlo has laid out the number coasters as below and you have to make a working sum by inserting the four mathematical symbols (+ , - , x , ÷ ) between the coasters shown. The symbols can be in any order.

Note: Please give your answer only on Whatsapp. My Whatsapp number is: +91-9271296105.