552. Решить устно: 0 × 6; 0 × 9; 0 × 5 + 6; 0 × 8 + 9; 104 × 6; 107 × 9; 208 × 4; 305 × 3.

0 × 6 = 0; 0 × 9 = 0; 0 × 5 + 6 = 6; 0 × 8 + 9 = 9; 104 × 6 = 624; 107 × 9 = 963; 208 × 4 = 832; 305 × 3 = 915.

Ответ: 0; 0; 6; 9; 624; 963; 832; 915.