Hãy viết số lớn nhất có 4 chữ số khác nhau và số bé nhất có 4 chữ số khác nhau rồi tính tông tính hiệu của hai số đó

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Giúp mik vs cảm ơn nhìu ạ thankkkkkk!!!!!!😘❤😘😘 1. Keep silent or you’ll wake the baby up.  If _____________________________________________________________. 2. Stop talking or you won’t understand the lesson  If _____________________________________________________________. 3. He will pay me tonight; I will have enough money to buy a car.  If _____________________________________________________________. 4. Study hard or you won’t pass the exam.  If _____________________________________________________________. 5. Don’t be impatient or you will make mistakes.  If _____________________________________________________________. 6. Leave me alone or I’ll call the police  If _____________________________________________________________. 7. Keep the environment clean and we will have an ideal place to live.  If _____________________________________________________________. 8. Be alert or your computer will be infected with viruses.  If _____________________________________________________________. 9. If you are not careful, you will cut yourself with that knife  UNLESS _______________________________________________________. 10. If you don’t like this one, I’ll bring you another.  UNLESS _______________________________________________________. 11. If you don’t rest, you will really be ill.  UNLESS _______________________________________________________. 12. Water these plants every day or they will die.  If _____________________________________________________________. 13. I’ll help you if you promise to try harder.  UNLESS _______________________________________________________.