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NUMERE REALE

Authored by SANDA BARBU

Mathematics

7th Grade

Used 19+ times

NUMERE REALE
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22 questions

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1.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Rezultatul calculului  122+52\sqrt{12^2+5^2}  este numărul ..... .

13

17

169

23

2.

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}  

3.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Raționalizând numitorul fracției  323\frac{3}{2\sqrt{3}}  se obține ..... .

 32\frac{3}{2}  

 332\frac{3\sqrt{3}}{2}  

 33\frac{\sqrt{3}}{3}  

 32\frac{\sqrt{3}}{2}  

4.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Dintre numerele  232\sqrt{3}  și  323\sqrt{2}  mai mare este ..... .

 323\sqrt{2}  

 232\sqrt{3}  

 333\sqrt{3}  

 222\sqrt{2}  

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media aritmetică a numerelor  50\sqrt{50}  și  18\sqrt{18}  este egală cu ..... .

 525\sqrt{2}  

 323\sqrt{2}  

 424\sqrt{2}  

 828\sqrt{2}  

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media geometrică a numerelor  252\sqrt{5}  și  858\sqrt{5}  este egală cu ..... .

 454\sqrt{5}  

 44  

 2020  

 16516\sqrt{5}  

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Calculând  35+5+3\left|\sqrt{3}-\sqrt{5}\right|+\sqrt{5}+\sqrt{3}  se obține ..... .

 232\sqrt{3}  

 25+232\sqrt{5}+2\sqrt{3}  

 252\sqrt{5}  

 00  

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