Вопрос:

Устно реши примеры: 6 × 7; 9 × 8; 4 × 9; 7 × 7; 3 × 6; 8 × 6; 5 × 8; 2 × 7; 9 × 3; 6 × 5; 8 × 3; 4 × 8.

Ответ:

  1. 6 × 7 = 42
  2. 9 × 8 = 72
  3. 4 × 9 = 36
  4. 7 × 7 = 49
  5. 3 × 6 = 18
  6. 8 × 6 = 48
  7. 5 × 8 = 40
  8. 2 × 7 = 14
  9. 9 × 3 = 27
  10. 6 × 5 = 30
  11. 8 × 3 = 24
  12. 4 × 8 = 32