How to Calculate Quickly

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  • TypeE-Books
  • LanguageEnglish
  • Total size4.3 MB
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  • Last checkedMay. 21st '18
  • Date uploadedJun. 21st '14
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How to Calculate Quickly - Full Course in Speed Arithmetic Ebook
1955 | ISBN: 1607964201, 048620295X | 185 pages | PDF | 5 MB


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





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