Articles liés à How to Calculate Quickly: Full Course in Speed Arithmetic

How to Calculate Quickly: Full Course in Speed Arithmetic - Couverture souple

Livre 181 sur 303: Dover Books on Mathematics

Sticker, Henry

 
9781607964209: How to Calculate Quickly: Full Course in Speed Arithmetic

Synopsis

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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