A simple abacus activity for Sugar
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Abacus lets the learner explore different representations of numbers using different mechanical counting systems developed by the ancient Romans and Chinese. There are several different variants available for exploration: a suanpan, the traditional Chinese abacus with 2 beads on top and 5 beads below; a soroban, the traditional Japanese abacus with 1 bead on top and 4 beads below; the schety, the traditional Russian abacus, with 10 beads per column, with the exception of one column with just 4 beads used for counting in fourths; and the nepohualtzintzin, the traditional Mayan abacus, with 3 beads on top and 4 beads below (it uses base 20).

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Upstream Summary



sharkcz's sugar-abacus-57-1.fc23 tagged into f23 by sharkcz (s390)

Details 14 days ago - 2015-05-13 21:49:15

sharkcz's sugar-abacus-57-1.fc23 completed (s390)

Details 14 days ago - 2015-05-13 21:49:13


karsten's sugar-abacus-57-1.fc23 tagged into f23 by karsten (ppc)

Details 23 days ago - 2015-05-04 16:57:57

karsten's sugar-abacus-57-1.fc23 completed (ppc)

Details 23 days ago - 2015-05-04 16:57:56


sharkcz's sugar-abacus-57-1.fc22 tagged into f22 by sharkcz (s390)

Details a month ago - 2015-04-29 00:18:42

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This Web Site is licensed under the GNU Affero General Public License. You may get sources for the current running code from these repositories: