Bài toán 2: Viết các thương sau dưới dạng một lũy thừa.

a) 4⁹: 4⁴; 17⁸ : 17⁵ ; 2¹⁰ : 8² ; 18¹⁰ : 3¹⁰ ; 27⁵ : 81³

b) 10⁶: 100 ; 5⁹: 25³ ; 4¹⁰ : 64³ ; 2²⁵ : 32⁴ ; 18⁴ : 9⁴

Bài toán 1: Tính giá trị các lũy thừa sau :

a) 2², 2³, 2⁴ , 2⁵ , 2⁶ , 2⁷ , 2⁸ , 2⁹ , 2¹⁰.

b) 3², 3³, 3⁴ , 3⁵.

c) 4², 4³, 4⁴.

d) 5², 5³, 5⁴.

Tìm 10 lỗi sai

This is Nam. He is my friend. He does gets up at a quarter to six. He brushes his the teeth, takes a shower and gets dressed. He has breakfast, then he leaves the house at a half past six. The school is near from his house so he goes on foot. Classes start at seven o’clock and end at half past eleven o’clock. He comes back to home and has lunch at twelve o’clock. It’s eight o’clock on Saturday evening now and Nam is in at home. He is in his room house and he is playing video games . He is also listening to music everyday at the same time. He plays games and listens to music every on Saturday and Sunday weekend. Sometimes he goes out and plays sports games with his friends. 0. does 1. _______________ 2. _______________ 3. _______________ 4. _______________ 5. _______________ 6. _______________ 7. _______________ 8. _______________ 9. _______________ 10. _______________

1. A. call                     B. fall                          C. shall                        D. wall

2. A. clown                 B. down                       C. own                         D. town

3. A. thank                  B. that                         C. this                          D. those

4. A. books                  B. pens                        C. rulers                      D. bags

5. A. come                  B. home                      C. some                       D. none

6. A. clothes                B. watches                   C. benches                   D. classes  

7. A. full                      B. tube                         C. blue                         D. fruit

8. A. doors                  B. dogs                        C. floors                      D. maps

9. A. hour                    B. happy                      C. high                        D. hotel

10. A. intersection       B. eraser                      C. bookstore                D. history

Do you think you do things well when you're in a hurry?

Đáp án : C nha bạn