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44x3; 21x5; 18x3; prin adunare repetata

Răspuns :

44x3=44x44x44=132
21x5=21x21x21x21x21=105
18x3=18x18x18=54
44x3=44+44+44=132
21x5= 21+21+21+21+21=105
18x3= 18+18+18=54
Succes !!