Making Paragraphs Concise

   1. The most important subjects that we study in school is mathematics. If we do not know how to do simple arithmetic when we do some everyday kind of activity like go to the grocery store. Many people are poor not because they do not earn enough money, but because they don’t understand the mathematics behind finances.

Besides the importance that mathematics has in our financial lives, it is also important in many other parts of our lives. For example, in the kitchen we have to know about mathematics functions like fractions or multiplication. Sometimes we cut amounts in half because fewer people are being cooked for or we have to double or triple amounts if a lot people are coming over to visit us for a special occasion.

   2  The electric streetcar was popular amoung the people in cities in the US after 1880. when an engineer invented a cable that could run from wire overhead to a streetcar’s electric engine. because there was this overhead wire, it wasn’t necessary to have dangerous electric rail running along the street, and it was a very important feature of the electic streetcar.

During the next 20 or 30 years are so, from 1880 onwards, the electric streetcar was very popular with pessangers in big cities all over the USA. it was not polluting and very efficient, carrying large numbers of passangers without costing very much money for the passengers. However, early in the next century, automobile manufacturers and other business interests made an effort to get rid of all the streetcar in the streets of big cities and replace them with buses and cars.