Răspuns :
a |----------|
b |----------|----------|----------|-----------| } 140.
140 : 5 = 28 (a)
28 ×4 = 112 (b)
Proba : 28 + 112 = 140.(a+b)
b |----------|----------|----------|-----------| } 140.
140 : 5 = 28 (a)
28 ×4 = 112 (b)
Proba : 28 + 112 = 140.(a+b)