/usr/share/games/xabacus/Abacusru1_1.les is in xabacus 8.0.2-1.
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Lesson 1.1: Counting from 1 to 20 for Russian Abacus
The beads will move at each step with an
appropriate explanation in this window.
Press Space-bar to Begin, press q to Exit
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Lesson 1.1: Counting
1
Press Space-bar to Continue
0 0 0 1 4
Lesson 1.1: Counting
2
Press Space-bar to Continue
0 0 0 1 4
Lesson 1.1: Counting
3
Press Space-bar to Continue
0 0 0 1 4
Lesson 1.1: Counting
4
Press Space-bar to Continue
0 0 0 1 4
Lesson 1.1: Counting
5
Press Space-bar to Continue
0 0 0 1 4
Lesson 1.1: Counting
6
Press Space-bar to Continue
0 0 0 1 4
Lesson 1.1: Counting
7
Press Space-bar to Continue
0 0 0 1 4
Lesson 1.1: Counting
8
Press Space-bar to Continue
0 0 0 1 4
Lesson 1.1: Counting
9
Press Space-bar to Continue
0 0 0 1 4
Lesson 1.1: Counting
10
(pending operation)
Press Space-bar to Continue
0 0 1 1 4
Lesson 1.1: Counting
10 (pending operation)
Carry-over...
Press Space-bar to Continue
0 0 0 -10 4
Lesson 1.1: Counting
10
...Reset deck
Press Space-bar to Continue
0 0 0 0 4
Lesson 1.1: Counting
Counting to 10 uses the addition
of the extra carry to the Previous Column
Press Space-bar to Continue
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Lesson 1.1: Counting
11
Press Space-bar to Continue
0 0 0 1 4
Lesson 1.1: Counting
12
Press Space-bar to Continue
0 0 0 1 4
Lesson 1.1: Counting
13
Press Space-bar to Continue
0 0 0 1 4
Lesson 1.1: Counting
14
Press Space-bar to Continue
0 0 0 1 4
Lesson 1.1: Counting
15
Press Space-bar to Continue
0 0 0 1 4
Lesson 1.1: Counting
16
Press Space-bar to Continue
0 0 0 1 4
Lesson 1.1: Counting
17
Press Space-bar to Continue
0 0 0 1 4
Lesson 1.1: Counting
18
Press Space-bar to Continue
0 0 0 1 4
Lesson 1.1: Counting
19
Press Space-bar to Continue
0 0 0 1 4
Lesson 1.1: Counting
20 (pending operation)
Press Space-bar to Continue
0 0 1 1 4
Lesson 1.1: Counting
20 (pending operation)
...Reset...
Press Space-bar to Continue
0 0 0 -10 4
Lesson 1.1: Counting
20 (pending operation)
...Carry-over To The Previous Column.
Press Space-bar to Continue
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Lesson 1.1: End
And now, some conclusions...
Press Space-bar to Continue
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Conclusion:
Each of the 10 beads on the deck has a value of 1.
Press Space-bar to Continue
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Conclusion: (continued)
Counting 10 beads on the deck requires a carry of
1 bead to the deck of the previous column.
Press Space-bar to Continue
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Conclusion: (continued)
Every column to the left of one's column is an
order of magnitude greater.
Press Space-bar
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Conclusion: (End)
Columns to the right of the one's column are used
for calculations involving decimals.
Press Space-bar
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