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@AndrewSommer78: Building bookshelves. Counting by three's. MEASUREMENT! #mathphoto16 #tmwyk https://t.co/au9IvoTUQW | by tads2

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@AndrewSommer78: Building bookshelves. Counting by three's. MEASUREMENT! #mathphoto16 #tmwyk https://t.co/au9IvoTUQW

Building bookshelves. Counting by three's. MEASUREMENT! #mathphoto16 #tmwyk t.co/au9IvoTUQW - @AndrewSommer78

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Uploaded on June 27, 2016