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Many useful procedures explained and taught: 2-column addition, left-to-right subtraction, mental division of large numbers, more. Also numerous helpful shortcuts. More than 8,000 problems, with solutions. 1945 edition.

Specifikace

• Stav: new
• Typ produktu:Knihy > Cizojazyčná literatura > English literature > Nonfiction > Science
• GTIN/EAN: 9780486202952

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