1.thực hiện phép tính
a.\(\dfrac{-5}{21}-\dfrac{1}{3}+3\dfrac{1}{2}.\left(\dfrac{-2}{3}\right)^3\)
b)\(-2\dfrac{1}{3}+\left(\dfrac{3}{8}-\dfrac{3}{4^{^{ }}}\right)^3:\dfrac{5}{9}-\dfrac{1}{2}\)
c)\(\left(6-2\dfrac{4}{5}\right).3\dfrac{1}{8}-1\dfrac{3}{5}:\left(-\dfrac{1}{2}\right)^2\)
d)\(-\dfrac{3}{7}.\dfrac{5}{9}+\dfrac{4}{7}.\dfrac{-1}{3}-\left(0,5\right)^3\)
e)\(\dfrac{15}{5}-\dfrac{2}{17}+\dfrac{15}{23}-\dfrac{15}{17}+\dfrac{4}{19}\)
Giúp mik nha mai mik phải nộp bài cho thầy rùi nì
Chia động từ trong ngoặc
1. We ( meet ) our old teacher two weeks ago
2. They ( not,lear ) English when they (be ) at primary school
3. He ( receive ) this gift this morning ?
4. The bus ( heave ) at 7.00 every morning
5. She ( teacher ) the lesson in the lall now
6. Lan and Hoa ( visit ) Nha Trang next month ?
7. Her sister ( be ) a student She ( gradurate ) her sccondry school in 2010
8. They ( travel ) tothe USA in the future
giúp mik nha nha mik phải nộp rồi
Đặt câu hỏi cho phần in đậm
1. Make favorite subject is English
2. He is reading a book
3.She plays tennis three times a week
4. It's 3 kilometers from his house to the hospital
5. They are playing soccer in the stadium
6. They usually listen to music in their free time
Giúp mik đi mai nộp òi nè >.<