{ "item_title" : "An Aid To Numerical Calculation", "item_author" : [" Henry A. Jones "], "item_description" : "An Aid To Numerical Calculation: Mental And Written is a book written by Henry A. Jones and originally published in 1884. The book is aimed at helping individuals improve their numerical calculation skills, both mentally and through written methods. It covers a wide range of topics, including addition, subtraction, multiplication, division, fractions, decimals, and percentages. The book also includes exercises and examples to help readers practice and develop their skills. Overall, An Aid To Numerical Calculation is a useful resource for anyone looking to improve their mathematical abilities.Containing New And Valuable Methods Of Computation. Embracing A System Of Abbreviated Multiplication, Also A New Process And General System Of Abbreviated Division.This scarce antiquarian book is a facsimile reprint of the old original and may contain some imperfections such as library marks and notations. Because we believe this work is culturally important, we have made it available as part of our commitment for protecting, preserving, and promoting the world's literature in affordable, high quality, modern editions, that are true to their original work.", "item_img_path" : "https://covers2.booksamillion.com/covers/bam/1/16/456/679/1164566792_b.jpg", "price_data" : { "retail_price" : "26.95", "online_price" : "26.95", "our_price" : "26.95", "club_price" : "26.95", "savings_pct" : "0", "savings_amt" : "0.00", "club_savings_pct" : "0", "club_savings_amt" : "0.00", "discount_pct" : "10", "store_price" : "" } }

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