Painless Mental Math: Quick, Easy, and Useful Ways to Become a Human Calculator by Peter Hollins
Painless Mental Math: Quick, Easy, and Useful Ways to Become a Human Calculator
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Peter Hollins
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Painless Mental Math: Quick, Easy, and Useful Ways to Become a Human Calculator

Peter Hollins

196 pages • first pub 2017 (editions)

nonfiction business self help informative fast-paced
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