Частина 2. Номер 354

31 • 3 = (30 + 1) • 3 = 30 • 3 + 1 • 3 = 90 + 3 = 93;

18 • 4 = (10 + 8) • 4 = 10 • 4 + 8 • 4 = 40 + 32 = 72;

41 • 2 = (40 + 1) • 2 = 40 • 2 + 1 • 2 = 80 + 2 = 82;

33 • 3 = (30 + 3) • 3 = 30 • 3 + 3 • 3 = 90 + 9 = 99;

17 • 4 = (10 + 7) • 4 = 10 • 4 + 7 • 4 = 40 + 28 = 68;

47 • 2 = (40 + 7) • 2 = 40 • 2 + 7 • 2 = 80 + 14 = 94;

12 • 6 = (10 + 2) • 6 = 10 • 6 + 2 • 6 = 60 + 12 = 72;

19 • 4 = (10 + 9) • 4 = 10 • 4 + 9 • 4 = 40 + 36 = 76.

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