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rezolva prin scadere repetata , dupa model

Rezolva Prin Scadere Repetata Dupa Model class=

Răspuns :

18:9 = 2
18-9-9=0
20:5=4
20-5-5-5-5=0
27:3=9
27-3-3-3-3-3-3-3-3-3=0
18-9-9=0                  18;9=2
20-5-5-5-5=0             20;5=4
27-3-3-3-3-3-3-3-3-3=0       27;3=9