Auto Biographi of an an Exercise Book

I am an exercise book with a neat and colourful hardboard binding. On my body, there are hundred sheets of paper all of which have small squares printed on them. I understand that, I look beautiful and neat and that, I am a very useful item of studies for school children.
I am an exercise book as men call me and I am used to write for a subject people call Mathematics. I believe this subject is a subject of numbers and the tiny squares on my body make it easy for children to write one number in one square. When I look back at my life it has throughout been an eventful one, full of love, thrill and excitement.
Some time back, I was bought by a shopkeeper. I was first brought into this shape of a copy a few months back. A hundred sheets were put together, all of the same appearance and size, the loose sheets were put together evened out and then bound together by a binder to give me this shape of an exercise book.
I still remember the day when my sheets or rather, my organs were all put together and bound into one piece of a copy book. It was a lot of pain each organ of mine felt when the binder used hard pointed instruments on each organ of mine to put us together. Once the organs that is all my sheets got integrated into one whole we all forgot our pain and enjoyed to see ourselves bound into one beautiful piece.
Once I took the shape of an exercise book, I was taken with several others of my clan to a stationery shop. At the shop I had great company of, firstly my own kin, and then the customers who came to the shop. These people coming in and going out of the shop gave me and my other colleagues a lot of entertainment. Customers coming, giving long lists of stationery items they wanted, arguing with the shopkeeper kept all of us entertained all the time.
However, everything can be enjoyed for a certain length of time only, after which it becomes boring. Hearing the same arguments, same demands etc, gave me the creeps and, after some time I wanted a change....