🧮
Abacus
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Current Value
0
0
— Zero
1
2
3
4
5
6
7
8
9
0
AC
⌫
+
−
×
÷
=
7
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9
4
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1
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0
⌫
AC
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×
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🧮 Soroban Abacus
Rods:
13
· Tap beads
Rods:
5
7
9
13
17
−
+
Upper Bead =
5
Lower Bead =
1
Active beads touch the bar
0 — Zero
🧮 Soroban Abacus
Rods:
13
· Click beads to toggle
Rods:
5
7
9
13
17
−
+
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