© Nava Vision 2019 All rights reserved All rights reserved by author. No part of this publication may be reproduced, stored in a retrieval system or transmitted in any form or by any means, electronic, mechanical, photocopying, recording or otherwise, without the prior permission of the author. Although every precaution has been taken to verify the accuracy of the information contained herein, the author and publisher assume no responsibility for any errors or omissions. No liability is assumed for damages that may result from the use of information contained within.

First Published in June 2019 ISBN: 978-93-5347-504-8

BLUE ROSE PUBLISHERS www.bluerosepublishers.com [email protected] +91 8882 898 898 Cover Design: Deepak Lal

Typographic Design: Sonia Suyal

Distributed by: Blue Rose, Amazon, Flipkart, Shopclues

Dedication We would like to dedicate this book - Abacus Level 2 of 8 series to

“Team Nava Vision” for their immense efforts, Creativity and unique content put together that lead to publishing of this book”.

INDEX Level 2 CHAPTER - 1 Recap of Level 1

1

Parts of Abacus

3

Abacus Representation

4

Adding and Subtracting with small friends

8

Adding and Subtracting with big friends

11

CHAPTER - 2 Addition with 2 and 3 Digit Numbers

17

Adding single digit to two and 3–digit numbers

19

CHAPTER - 3 Subtraction with 2 and 3Digit Numbers

29

Subtracting single digit from two and 3–digit numbers

31

CHAPTER – 4 Addition

41

Adding two-digit numbers

43

CHAPTER – 5 Subtraction

51

Subtracting two-digits numbers

53

CHAPTER - 6 Addition and Subtraction

61

Adding and Subtracting 1 and 2 digits

63

1 Ride The Wall Of Change With A New Beginning…

Chapter – 1

ABACUS

3 Ride The Wall Of Change With A New Beginning…

RECAP OF LEVEL - 1 We have seen the outlook of Abacus in our Level -1 book. In this lesson, we will have a glance again at the basics by doing small recap exercises.

PARTS OF ABACUS

Learning Lesson: 1.1 Fill the blanks using the words below:

4 Ride The Wall Of Change With A New Beginning…

ABACUS REPRESENTATION

Learning Lesson: 1.2 See the Abacus representation and write the number in the space provided below:

5 Ride The Wall Of Change With A New Beginning…

6 Ride The Wall Of Change With A New Beginning…

Learning Lesson 1.3 Represent the given number in the Abacus frame provide below:

7 Ride The Wall Of Change With A New Beginning…

8 Ride The Wall Of Change With A New Beginning…

ADDING AND SUBTRACTING WITH SMALL FRIENDS

Learning Lesson 1.4 Perform Addition and Subtraction using Abacus representation.

9 Ride The Wall Of Change With A New Beginning…