1. Điền số thích hợp vào chỗ trống
a. ... ->+4...->x8 80
b. ...->x7...->-17 18
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4. Điền một mạo từ thích hợp (a/ an/ the hoặc q) vào mỗi chỗ trống
a. Playing basketball is (41).............an......... useful activity at recess.
b. Tuan is a student at (42) ........an.......... European university. He is learning (43) ..........0......Economics.
c. (44) ............The........teacher you are going to see this afternoon is (45) ...........a......kind woman.
d. (46) .......0.........Vietnamese students often play (47)...0...... game of soccer after school.
e. Most (48).....0.......... children feel sacred when they go to see (49) .........the....... dentist.
f. We need (50) ......an................. one hundred thousand dong phone card at the postoffice.
5. Điền một giới từ thích hợp vào mỗi chỗ trống trong các câu sau
a. Minh has a serious toothache and he is (51).............in....... a lot of pain now.
b. What’s wrong (52)..........with........ you? Why were you absent (53) .....from............ school yesterday?
c. In the library you can find a book (54) ...........with.. its tittle and (55) .....or..........author.
d. You should take care (56) .......of...... yourself and don’t stay (57) ...........up........ too late.
e. Balanced diet means you eat a variety of food (58)..........without............... eating too much of anything.
f. Lan will be fourteen ......on........... the twentieth .............of...... May this year.
b: \(\left(124567-4567\right):5=240000\)
c: \(751\cdot68+751\cdot32=75100\)
d: \(\left(1300-300\right)\cdot45=45000\)
a) 48:9=5(dư 3)
b) 65 : 9 =7(dư 2)
c) 67:9=7(dư 4)
d) 86 : 9 =9(dư 5)