Very clearly written and tricks all had everyday uses.
Cathy Solomon LIKES this book
It tells you tricks that you can use no matter what problem you are working on. I am bad at math, but I love math. This book has helps me cope with it. It give anyone the help they need. It helped me.
Megan Groenewald LIKES this book
Very informative and well-written.
Ample Green LIKES this book
This book holds some interesting concepts
Jahid LIKES this book
very interesting book
Nabeel7 LIKES this book
Maths has never been so easy
Sanjitvigneshs LIKES this book
In the adding time topic, you have not specified the condition that once the times have been added, you have to check if the last 2 digits form a number greater than 60. Only then you have to add 40. Otherwise you shouldn't. Excellent tricks though...