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TOÁN 7

Authored by Duyên Nguyễn Thuý

Mathematics

7th Grade

TOÁN 7
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20 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

36\sqrt[]{36}  bằng

3

4

5

6

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Biết AB2=25AB^2=25  thì độ dài đoạn thẳng AB=

3

25

625

5

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Biết AB2=8AB^2=8  thì độ dài đoạn thẳng AB=

8\sqrt[]{8}  

4

64

2

4.

FILL IN THE BLANKS QUESTION

30 sec • 1 pt

Biết AB=17AB^{ }=\sqrt[]{17}  thì AB2AB^2  =

(a)  

5.

MULTIPLE CHOICE QUESTION

30 sec • 5 pts

Căn bậc hai số học của 9 là:

-3

3

±3\pm3

81

6.

MULTIPLE CHOICE QUESTION

30 sec • 5 pts

Số 16 có hai căn bậc hai là:

4

-4

256

±4\pm4

7.

MULTIPLE CHOICE QUESTION

30 sec • 5 pts

−16\sqrt{-16}  =

A. 4

B. -4

C. không tính được

D. cả A và B đều đúng

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