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Because we have ten fingers, grouping by ten seems natural, but it has serious shortcomings. Twelve would be better for divisibility, and eight is well suited to repeated halving. Grouping by two, as in binary code, has turned out to have its own remarkable advantages.Paul Lockhart presents arithmetic not as a rote manipulation of numbers-a practical if mundane branch of knowledge best suited for filling out tax forms-but a fascinating, sometimes surprising intellectual craft that arises from ou...Vis mer
Om boken
ISBN
9780674237513
Forlag
Harvard University Press
Publiseringsår
2019
Språk
Utgave
1
Originaltittel
Arithmetic
Format
Frakt og retur
Frakt
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