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nguyenthuydung2001tb
2 năm trước
Câu 3 : Tìm các số nguyên x biết: a) 4x-17=23 b) 18-3x=-9 c) x-(18-21)=(-3)² d) |5x-15|=0 Câu 2 : Từ đẳng thức 15.8=12.10. Hãy lập các cặp phân số bằng nhau. Mong mn giúp em. Em cảm ơn nhiều ạh
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Các câu hỏi liên quan

I. Find the word to match the definition : Definition : Word 1. small hole within a tooth c. …………………. 2. opposite of dirty c…………………… 3. opposite of heathy u…………………… 4. doctor’s or dentist’s room s………………….... 5. a person looking after our teeth d…………………… 6. arrangement to meet somebody a……………………. 7. make full f……………………. 8. instrument for making holes in a hard place d……………………. II. Use the word in brackets in the correct form to fill in each gap : 1. As a child I was ________________ of the dentist when I visited him ( scare ) 2. Some food is ___________________ and makes our teeth bad ( heathy ) 3. They felt ________________ when he came home late last night ( worry ) 4. I have an _________________ with the doctor tomorrow ( appoint ) 5. The dentist said Mary needed two _______________ (fill ) 6. Try to wait for a few minutes and it’ll stop ___________________ ( hurt ) 7. The nurse is kind and very _________________ ( help ) 8. Don’t touch that tooth . It’s very __________________ ( pain ) III. Use the words in the box to complete the sentences : Planted , wrote , walked , got , ate , washed , stopped , talked 1. Ann _____________ to class yesterday instead of taking the bus 2. I ________________ the dirty dishes after dinner last night 3. The rain _________________ a few minutes ago . The sky is clear now 4. Mr. Wilson _________________ some trees in his garden yesterday morning 5. I ______________ up at eight o’clock yesterday morning 6. Mai and Huong _________________ lunch at the cafeteria two hours ago 7. Mary _____________ to John on the phone last night 8. Sue _______________ a letter to her parents yesterday

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