17 × 0 = 0; 14 : 1 = 14; 67 × 0 = 0; 4 × 0 = 0; 0 × 35 = 0; 0 × 55 = 0; 18 : 18 = 1; 0 × 41 = 0; 98 × 1 = 98; 14 × 1 = 14; 33 × 1 = 33; 39 × 1 = 39.