Operatii cu numere reale

Operatii cu numere reale

7th Grade

20 Qs

quiz-placeholder

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Operatii cu numere reale

Operatii cu numere reale

Assessment

Quiz

Mathematics

7th Grade

Medium

Created by

CLAUDIA ȘTIUBE

Used 21+ times

FREE Resource

20 questions

Show all answers

1.

MULTIPLE SELECT QUESTION

30 sec • 1 pt

Rezultatul calculului: (131445196)81\left(13\sqrt{144}-5\sqrt{196}\right)\cdot\sqrt{\sqrt{81}} , este:

0

 52\sqrt{52}  

258

774

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Rezultatul calculului

 2(64)24 2\cdot\left(\sqrt{6}-4\right)-\sqrt{24}\   este egal cu

 8-8  

 4-4  

 44  

 26+42\sqrt{6}+4  

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Rezultatul calculului

 627:(33)+249-6\sqrt{27}:\left(3\sqrt{3}\right)+2\sqrt{49}  este:

 20-20  

 88  

 9292  

 8-8  

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Rezultatul calculului 2 \sqrt{2\ }  - 8\sqrt{8}  +2 32\sqrt{32}   este

2 2\sqrt{2}  

-2 \sqrt{2}  

7 \sqrt{2}  

- \sqrt{2}  

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Rezultatul calculului  520\sqrt{5}\cdot\sqrt{20}  este

100

10

2 5\sqrt{5}  

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Rezultatul calculului  150÷6\sqrt{150}\div\sqrt{6}  este

 565\sqrt{6}  

5

 6\sqrt{6}  

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Raționalizând fracția  66\frac{6}{\sqrt{6}}  ,obținem

 6\sqrt{6}  

1

 66\frac{\sqrt{6}}{6}  

 636\frac{\sqrt{6}}{36}  

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