Răspuns :
a 50 b
5 50 5..........(5+0=5 si 5-0=5)
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E) 5
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regula este: 10 82 6 => 8+2=10 (stanga)...;8-2=6(dreapta)
10 64 2 => 6+4=10..................6-4=2...............
3 30 3 => 3+0=3......................3-0=3
5 50 5 =? 5+0=5......................5-0=5
5 50 5..........(5+0=5 si 5-0=5)
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E) 5
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regula este: 10 82 6 => 8+2=10 (stanga)...;8-2=6(dreapta)
10 64 2 => 6+4=10..................6-4=2...............
3 30 3 => 3+0=3......................3-0=3
5 50 5 =? 5+0=5......................5-0=5