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On tap Toan 9 Tuan 1: Can bac hai va he thuc luong

Authored by Cai Long

Mathematics

8th - 9th Grade

Used 11+ times

On tap Toan 9 Tuan 1: Can bac hai va he thuc luong
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25 questions

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1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

 (35)2=-\sqrt{\left(-\frac{3}{5}\right)^2}=  Giá trị của biểu thức

9/25

-3/5

3/5

-9/25

2.

FILL IN THE BLANKS QUESTION

1 min • 1 pt

 x=4\sqrt{x}=4  
Khi đó x=

(a)  

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

 x=2,5\sqrt{x}=2,5  
Khi đó x=

5

-5

6,25

-6,25

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Căn bậc hai số học của 0,01 là

0,001

0,0001

0,01

0,1

5.

FILL IN THE BLANKS QUESTION

1 min • 1 pt

 49+2540,25=\sqrt{49}+\sqrt{25}-4\sqrt{0,25}=  
(không dùng máy tính)

(a)  

6.

FILL IN THE BLANKS QUESTION

1 min • 1 pt

 10000.19.0,81.0,09=\sqrt{10000}.\sqrt{\frac{1}{9}}.\sqrt{0,81}.\sqrt{0,09}=  

(a)  

7.

FILL IN THE BLANKS QUESTION

1 min • 1 pt

 1636+64=\sqrt{16}-\sqrt{36}+\sqrt{64}=  

(a)  

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