File:Using-an-Abacus-05.png
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Summary
| Description |
English: In (a) we use vertically arranged rods as counters of value one to represent the number 18. In (b) we use a horizontally arranged rod as a counter of value five and in (c) we use a more compact rod arrangement with alternation of orientation or not depending on whether we use a smooth table or a checkerboard (see details in Wikipedia). |
| Date | |
| Source | Own work |
| Author | Jccsvq |
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 05:12, 14 September 2021 | | 324 × 357 (14 KB) | Jccsvq | Uploaded own work with UploadWizard |
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