Corretto: 7x0=0, 7x1=7, 7x2=14, 7x3=21, 7x4=28, 7x5=35, 7x6=42, 7x7=49, 7x8=56, 7x9=63, 7x10=70, Errato: 7x0=1, 7x1=1, 7x2=13, 7x3=14, 7x4=32, 7x5=15, 7x6=40, 7x7=42, 7x8=48, 7x9=56, 7x10=7,

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