Cộng đến 20

Phiếu bài tập

Hai nhóm

Tên ________________________    Ngày ________________

  1. 1.9 🐶🐶🐶🐶🐶🐶🐶🐶🐶 + 8 🐶🐶🐶🐶🐶🐶🐶🐶
  2. 2.7 🐶🐶🐶🐶🐶🐶🐶 + 6 🐶🐶🐶🐶🐶🐶
  3. 3.10 🐶🐶🐶🐶🐶🐶🐶🐶🐶🐶 + 10 🐶🐶🐶🐶🐶🐶🐶🐶🐶🐶
  4. 4.8 🐶🐶🐶🐶🐶🐶🐶🐶 + 7 🐶🐶🐶🐶🐶🐶🐶
  5. 5.9 🐶🐶🐶🐶🐶🐶🐶🐶🐶 + 9 🐶🐶🐶🐶🐶🐶🐶🐶🐶
  6. 6.6 🐶🐶🐶🐶🐶🐶 + 5 🐶🐶🐶🐶🐶
  7. 7.10 🐶🐶🐶🐶🐶🐶🐶🐶🐶🐶 + 9 🐶🐶🐶🐶🐶🐶🐶🐶🐶
  8. 8.8 🐶🐶🐶🐶🐶🐶🐶🐶 + 6 🐶🐶🐶🐶🐶🐶
  9. 9.7 🐶🐶🐶🐶🐶🐶🐶 + 7 🐶🐶🐶🐶🐶🐶🐶
  10. 10.9 🐶🐶🐶🐶🐶🐶🐶🐶🐶 + 4 🐶🐶🐶🐶
  11. 11.10 🐶🐶🐶🐶🐶🐶🐶🐶🐶🐶 + 8 🐶🐶🐶🐶🐶🐶🐶🐶
  12. 12.8 🐶🐶🐶🐶🐶🐶🐶🐶 + 5 🐶🐶🐶🐶🐶

Đáp án

  1. 1.17
  2. 2.13
  3. 3.20
  4. 4.15
  5. 5.18
  6. 6.11
  7. 7.19
  8. 8.14
  9. 9.14
  10. 10.13
  11. 11.18
  12. 12.13