Răspuns :
a |-----|-----|-----|-----|-----|-----|
b |-----|
c |-----|-----| } 63.
63 : 9 = 7 (b)
7 × 2 = 14 (c)
14 × 3 = 42 (a)
Proba : 42 + 7 + 14 = 63.
b |-----|
c |-----|-----| } 63.
63 : 9 = 7 (b)
7 × 2 = 14 (c)
14 × 3 = 42 (a)
Proba : 42 + 7 + 14 = 63.