Вопрос:

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

Ответ:

  1. 8 × 6 = 48
  2. 7 × 5 = 35
  3. 9 × 9 = 81
  4. 3 × 8 = 24
  5. 6 × 4 = 24
  6. 8 × 7 = 56
  7. 2 × 9 = 18
  8. 5 × 4 = 20
  9. 4 × 6 = 24
  10. 6 × 8 = 48
  11. 9 × 6 = 54
  12. 3 × 7 = 21