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FREE/BARGAIN: Less than $3.00 Non-Fiction Books
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10-27-2015, 09:54 PM
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GtrsRGr8
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Quote:
Originally Posted by
GA Russell
Mental Math - free
http://www.amazon.com/Mental-Math-Ca...dp/B016U07AD8/
. . . .
Isn't
all
math mental? Well, except when you come across some really difficult math problem and have to start counting your fingers (and if it's really, really difficult start counting your toes). hahah
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