This site is designed for everyone who needs to take a practical course of arithmetic.
You may download a document if you like.
Ferat Talat oglu
Document 
Description 
"Elementary Mathematics Task" pdf (388 KB zip) 
It is a problem book.

"Elementary Mathematics Task" djvu (336 KB zip) 

"Skill in calculating by hand" pdf (132 KB zip) 
Title: "Skill in calculating by hand. Nowadays, is this skill so important?" The object of the article is to answer the question posed in the title of the article. html version is here
