/usr/share/games/xabacus/Abacusko4_1.les is in xabacus 8.0.2-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 | 0 0 0 0 4
Lesson 4.1: Subtraction
This Lesson demonstrates subtracting 7 from 11
Press Space-bar to Begin, press q to Exit
0 0 1 4.1
Lesson 4.1: Subtraction (11-7)
First Represent 11 as 10...
(pending operation)
Press Space-bar to Continue
0 0 0 4.1
Lesson 4.1: Subtraction (11-7)
...and 1.
(This is 11)
Press Space-bar to Continue
0 0 0 0 4
Lesson 4.1: Subtraction (11-7)
We Represent -7 as -10+3, so...
Press Space-bar to Continue
0 0 1 -4.1
Lesson 4.1: Subtraction (11-7)
-10 ...
(pending operation +3)
Press Space-bar to Continue
0 0 0 3 4
Lesson 4.1: Subtraction (11-7)
...+3 Completes The Operation
The Answer is +4.
Press Space-bar
0 0 0 0 4
Conclusion: (End)
To perform addition, move beads towards the
position-beam; to subtract, move beads away from it.
Press Space-bar
|