How to Calculate Quickly - Full Course in Speed Arithmetic Ebook

  • CategoryOther
  • TypeE-Books
  • LanguageEnglish
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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
Henry Sticker | English

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.




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