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ÔN TẬP CHƯƠNG 1

Authored by Trang Thùy

Mathematics, Fun, Education

6th Grade

Used 1+ times

ÔN TẬP CHƯƠNG 1
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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Chọn câu đúng:

I⊂RI\subset R

Q⊂IQ\subset I

N⊂IN\subset I

Z⊂IZ\subset I

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

 9.(−13)3+13=9.\left(-\frac{1}{3}\right)^3+\frac{1}{3}=  

 11  

 00  

 −1-1  

 −2-2  

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

 (−2,5).(−4).(−7,9)=\left(-2,5\right).\left(-4\right).\left(-7,9\right)=  

 −7,9-7,9  

 −79-79  

 −790-790  

 −0,79-0,79  

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Tìm x, biết ∣x∣=2,5\left|x\right|=2,5  

 −2,5-2,5  

 2,52,5  

 2,5 2,5\   hoặc −2,5-2,5  

Không có giá trị x

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Tìm x, biết: ∣x∣=−1,2\left|x\right|=-1,2  

 x=1,2x=1,2  

 x=−1,2x=-1,2  

 x=1,2x=1,2  hoặc  x=−1,2x=-1,2  

Không có giá trị x

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Tìm y, biết: −35.y=2110-\frac{3}{5}.y=\frac{21}{10}  

 −27\frac{-2}{7}  

 −715\frac{-7}{15}  

 −72\frac{-7}{2}  

 −721\frac{-7}{21}  

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

 0,01−0,25=\sqrt{0,01}-\sqrt{0,25}=  

Tính giá trị của biểu thức:

 0,40,4  

 0,50,5  

 0,10,1  

 −0,4-0,4  

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