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Math Magic: The Human Calculator Shows How to Master Everyday Math Problems in Seconds by Scott Flansburg Pages are clean and are not marred by notes or folds of any kind. ~ ThriftBooks: Read More, Spend Less
When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.