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Numere reale. Arii si perimetre

Authored by STEFAN ADRIANA

Mathematics

7th Grade

Used 12+ times

Numere reale. Arii si perimetre
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18 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Introducând factorul sub radical, din  535\sqrt{3}  se obține ..... .

 8\sqrt{8}  

 15\sqrt{15}  

 75\sqrt{75}  

 50\sqrt{50}  

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Rezultatul calculului  36+64\sqrt{36}+\sqrt{64}  este

100

10

14

 14\sqrt{14}  

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Rezultatul calculului  9+16\sqrt{9+16}  este

5

25

7

 7\sqrt{7}  

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Rezultatul calculului  3263\sqrt{2}\cdot\sqrt{6}  este

6

 636\sqrt{3}  

36

 666\sqrt{6}  

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Rezultatul calculului  1515÷3515\sqrt{15}\div3\sqrt{5}  

15

 555\sqrt{5}  

 535\sqrt{3}  

 353\sqrt{5}  

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Calculând  35+15:33\sqrt{5}+\sqrt{15}:\sqrt{3}  se obține ..... .

 555\sqrt{5}  

 454\sqrt{5}  

 252\sqrt{5}  

 353\sqrt{5}  

7.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Rezultatul calculului  20245+80\sqrt{20}-2\sqrt{45}+\sqrt{80}  este

 2552\sqrt{55}  

 454\sqrt{5}  

 25-2\sqrt{5}  

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