Activities/Abacus: Difference between revisions
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:binary button (binary abacus) | :binary button (binary abacus) | ||
:hexadecimal button (hexadecimal abacus) | :hexadecimal button (hexadecimal abacus) | ||
:fraction button (fraction abacus) | |||
:customization-toolbar button | :customization-toolbar button | ||
:stop button not shown | :stop button not shown | ||
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:select the number of beads on the bottom of the frame | :select the number of beads on the bottom of the frame | ||
:select the multiplication factor of top beads (e.g., on the Chinese abacus, each top bead counts as 5× the value of a bottom bead on the same rod) | :select the multiplication factor of top beads (e.g., on the Chinese abacus, each top bead counts as 5× the value of a bottom bead on the same rod) | ||
:select the base to determine the value of bottom beads across rods; this is 10 on most conventional abacuses, but 20 on the Mayan abacus and 2 on the binary abacus. | :select the base to determine the value of bottom beads across rods; this is 10 on most conventional abacuses, but 20 on the Mayan abacus, 16 on the hexadecimal abacus, and 2 on the binary abacus. | ||
== How to use an abacus == | == How to use an abacus == | ||