1517 San Jacinto St.; Houston, Texas, 77002
phone 713-652-3937 | 800-423-1825
fax 713-652-1914 | 713-652-1911
This handy book is designed to streamline your methods and resharpen your calculation skills for a variety of situations. Starting with the most elementary operations, the book goes on to cover all basic topics and processes of arithmetic: addition, subtraction, multiplication, division, fractions, percentage, interest, ratio and proportion, denominate numbers, average, etc.