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Authored by Alexandra Manolache

Mathematics

7th - 8th Grade

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20 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

 2\sqrt{2}  este număr:

real

irațional

natural

întreg

2.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Rezultatul calculului

 16+25\sqrt{16}+\sqrt{25}  este:

 41\sqrt{41}  

41

9

12

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Care dintre următoarele numere este număr natural:

 7, 9, 57,3-7,\ \sqrt{9},\ \frac{5}{7},\sqrt{3}  

 7-7  

 9\sqrt{9}  

 57\frac{5}{7}  

 3\sqrt{3}  

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

După introducerea factorului sub radical se obține  35=...3\sqrt{5}=...  

 15\sqrt{15}  

 45\sqrt{45}  

 75\sqrt{75}  

 8\sqrt{8}  

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

După scoaterea factorului de sub radical, se obține:  18=...\sqrt{18}=...  

 636\sqrt{3}  

 323\sqrt{2}  

 363\sqrt{6}  

 929\sqrt{2}  

6.

MULTIPLE SELECT QUESTION

1 min • 1 pt

 352Q\frac{3\sqrt{5}}{2}\in Q  este o propozitie

Adevarata

Falsa

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

 0,0121=\sqrt{0,0121}=  

0,011

0,11

1,1

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