“EASY
WAYS FOR PERFORMING ARITHMETIC COMPUTATIONS” is a book written by Bagiliko
John, an undergraduate student of the University for Development Studies (UDS),
offering BSc. Pure Mathematics. He is currently in Level 200. He is currently
researching on why most people do not like mathematics. He believes that
through his effort, the depending perception of most people that mathematics or
arithmetic is difficult will be eradicated.

In the book, he presents easy ways, more or less simple
tricks that can be used in performing some arithmetic computations. Why his
choice of this topic? He aims at proving to people that arithmetic computations
can be done in a very easy and interesting way, contrary to what they think
about it. What is his definition for arithmetic? He defines arithmetic as the
basic tool to mathematics. He gives a scenario in the introduction; when a baby
is born, a point is reached where it learns to walk. It does this by first
crawling. This crawling he says can be likened to arithmetic. The walking
itself is mathematics.

The book is presented in a way that will arouse the interest
of the reader to learn arithmetic. For example, 11 × 35 can be computed by
placing the 3 and 5 as 3….5. The 3 and 5 are again added and placed in between
3….5. This becomes 385. This is very amazing and confirms that arithmetic
computation can be very interesting. In the book, there are many of these which
will help the reader to know how to compute similar ones. The book also
presents to the reader various simple tricks to be used in computing many
arithmetic questions.

Someone might have concluded that then the book is for basic
school children. No, the book is for everybody, whether a worker or a student
of any level. Arithmetic is actually needed in our daily activities. Sometimes
we go to buy many things in a shop at a go. With strong knowledge of arithmetic
computations, we will be able to compute the total amount to be paid within
some few seconds. This book explains to the reader how to do that without thinking
there is magic involved.

What will the reader be able to do after reading this book?
The author presents the book such that after the reader has gone through it, he
or she should be able to perform the following:

I.
Multiply a double digit number by eleven.

II.
Multiply a number by 10, 100, 1000 and so on.

III.
Multiply a number by 5

IV.
Multiply two numbers ranging from 10 to 19

V.
Find the square of any number ending with a 5.

VI.
Divide a number by 10, 100, 1000 and so on.

VII.
Divide a number by 5

VIII.
Multiply numbers ranging from 1 to 10 by 9 using
an amazing fact.

These are all things the reader
will be able to do without the use of a calculator. The reader is also expected
to practice these things well to be able give out answers to any of those
computations within a few seconds. The book is actually a must read since we
all need arithmetic in our daily activities.

The book appears to concentrate
on multiplication and division for now. More will come from the author as time
goes on. He will revise this current book by adding more to the content.

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