Quy tắc dấu ngoặc và quy tắc chuyển vế

Quy tắc dấu ngoặc và quy tắc chuyển vế

6th - 7th Grade

10 Qs

quiz-placeholder

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Quy tắc dấu ngoặc và quy tắc chuyển vế

Quy tắc dấu ngoặc và quy tắc chuyển vế

Assessment

Quiz

Mathematics

6th - 7th Grade

Hard

Used 10+ times

FREE Resource

10 questions

Show all answers

1.

MULTIPLE SELECT QUESTION

30 sec • 1 pt

  25(25+37)=\frac{2}{5}-\left(\frac{2}{5}+\frac{3}{7}\right)= 

A.  37\frac{-3}{7}  

B.  37\frac{3}{7}  

C.  25\frac{2}{5}  

D.  45\frac{4}{5}  

2.

MULTIPLE SELECT QUESTION

30 sec • 1 pt

 (151112)+1511=\left(\frac{-15}{11}-\frac{1}{2}\right)+\frac{15}{11}=  

A.  1511\frac{15}{11}  

B.  1511\frac{-15}{11}  

C.  12\frac{1}{2}  

D.  12-\frac{1}{2}  

3.

MULTIPLE SELECT QUESTION

45 sec • 1 pt

Đơn giản biểu thức  23511+x(6511+x)+x\frac{235}{11}+x-\left(\frac{65}{11}+x\right)+x   ta được

A.  x+17011x+\frac{170}{11}  

B.  30011+x\frac{300}{11}+x  

C.  30011x\frac{300}{11}−x  

D.  17011+3x\frac{170}{11}+3x  

4.

MULTIPLE SELECT QUESTION

45 sec • 1 pt

Đơn giản biểu thức sau:

 x+1110(8910x)x+\frac{11}{10}-(-\frac{89}{10}-x)  

A. 2x+10

B. 30−x

C. x−10

D. 10+3x

5.

MULTIPLE SELECT QUESTION

45 sec • 1 pt

Tìm x biết:  x(951)=45x-\left(\frac{9}{5}-1\right)=|-\frac{4}{5}|  


A.  45\frac{4}{5} 

B.  85\frac{-8}{5}  

C. 0

D.  85\frac{8}{5}  

6.

MULTIPLE SELECT QUESTION

30 sec • 1 pt

Tìm x biết : x12=12x-\frac{1}{2}=|-\frac{1}{2}|  


A. 0

B. 2

C.  12\frac{1}{2}  

D. 1

7.

MULTIPLE SELECT QUESTION

30 sec • 1 pt

 (ab)(a+b)\left(a-b\right)-\left(a+b\right)  

Sau khi bỏ ngoặc ta được:

A. −a+2b

B. b-a

C. 2a+2b

D. −2b

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