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Napier's Bones
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Napier's Bones
By
camerin
11
0
1981
0
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Napier's bones are a mechanical calculator that helps students relate multiplication of single digit numbers to simple addition and multiplication table. http://en.wikipedia.org/wiki/Napier's_bones
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13 Followers
7080 Downloads
Joined over 10 years ago
Redmond, Washington
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