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56 on an abacus

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56

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Enter any whole number from 0 to 9,999,999.

↑↓±1←→rodsRRandomCResetKeyboard: ↑/↓ ±1, ←/→ ±10, R random, C reset.

Quiz: set the number on the abacus

Level:
📖 View Step-by-Step Bead Positioning Guide (Optional)▼

To show 56 on a soroban, read the rods from left to right: the millions column is clear with no active beads; the hundred-thousands column is set to zero; the ten-thousands column has no beads moved to the beam; the thousands column remains empty on this column; the hundreds column is clear with no active beads; the tens column engages the upper bead while the lower deck stays clear; the ones column shows 6 with the upper bead active and 1 lower bead pushed up.

  1. Step 1. Start from a cleared soroban with every upper bead away from the beam and every lower bead resting at the bottom.
  2. Step 2. Adjust the millions column to 0. the millions column is clear with no active beads.
  3. Step 3. Configure the hundred-thousands rod for 0. That means the hundred-thousands column is set to zero.
  4. Step 4. On the ten-thousands column, show 0. In practice, the ten-thousands column has no beads moved to the beam.
  5. Step 5. Set the thousands column for 0. Here, the thousands column remains empty on this column.
  6. Step 6. Adjust the hundreds column to 0. the hundreds column is clear with no active beads.
  7. Step 7. Adjust the tens column to 5. the tens column engages the upper bead while the lower deck stays clear.
  8. Step 8. Adjust the ones column to 6. the ones column shows 6 with the upper bead active and 1 lower bead pushed up.
  9. Step 9. Once every column is set, the soroban should read 56 across the full frame.

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