How to Calculate Quickly

Full Course in Speed Arithmetic

Henry Sticker

Pocket

Engelsk

Dover Books on Mathema 1.4tics

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Forfatter: Henry Sticker
Format: Pocket
Antall sider: 192
Språk: Engelsk
Forlag/Utgiver: SD Books
Serienavn: Dover Books on Mathema 1.4tics
EAN: 9780486202952
Utgivelsesår: 2000
Bidragsyter: Sticker, Henry

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Many useful procedures explained and taught: 2-column addition, left-to-right subtraction, direct multiplication by numbers greater than 12, mental division of large numbers, more. Also numerous helpful shortcuts. More than 8,000 problems, with solutions. 1945 edition.

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How to Calculate Quickly

Full Course in Speed Arithmetic

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