INTRODUCTION
Mental Mathematics as a project has been running successfully in all the Government
schools of Delhi since its inception in 2004. The main objectives of this project were to
· Remove Maths phobia in the students
· Sharpen their calculation skills and
· Make learning of Mathematics joyful and interesting.
The Mental Maths Quiz competitions held every year have contributed towards achieving
these objectives to a large extent. Since Mental Maths is “Maths without the use of pen and
paper”, it is essential to provide simplified ways of common but lengthy calculations.
The teachers of Mathematics associated with the project have compiled few tricks in this
booklet. I believe these will prove very useful for the students to learn to do calculations mentally
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and thereby also solve the one mark and two mark questions in the class 10 examination.
ANITA SATIA
Director, SCERT
Nodal Officer
(Mental Maths)
Publication Team :
Sapna Yadav, Sanjay Kumar, Anul Tevatia, Dr. Rashmi Aggarwal
Creative Team :
Mrs Neelam Kapoor, Lecturer Maths, SN SKV A Block Defence Colony, New Delhi
Mrs. Chanderkanta Chabria, Lecturer Maths, RPVV, Tyagraj Nagar, Lodhi Road, New Delhi
Technical Support Team:
Mrs. Poonam Virmani, Vice Principal, Veer Savarkar, Kalkaji No. 1, New Delhi
Mrs. Anju Sapra ,Lecture Home Science ,Janki Devi SKV Poket -II,Mayur Vihar, Phase -I Delhi
Published by State Council of Educational Research & Training, New Delhi
and Printed at CHAUHAN ART PRESS Karol Bagh, New Delhi-5 Tel : 9711811511