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Activities/Abacus
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Revision as of 19:00, 3 April 2010
28 bytes added
,
19:00, 3 April 2010
→Reading the abacus
Line 43:
Line 43:
File:Abacus-6.png|1 bottom bead is up and 1 top bead is down, corresponding to 6 units
File:Abacus-6.png|1 bottom bead is up and 1 top bead is down, corresponding to 6 units
File:Abacus-10.png|5 bottom beads are up and 1 top bead is down, corresponding to 10 units (time to "carry" to the left)
File:Abacus-10.png|5 bottom beads are up and 1 top bead is down, corresponding to 10 units (time to "carry" to the left)
+
File:Abacus-54321.png|54321
</gallery>
</gallery>
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