numere reale clasa 7

numere reale clasa 7

1st Grade

7 Qs

quiz-placeholder

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numere reale clasa 7

numere reale clasa 7

Assessment

Quiz

Mathematics

1st Grade

Medium

Created by

Larisa Lomaca

Used 41+ times

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7 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Rezultatul calculului 25 esteRezultatul\ calculului\ \sqrt{25}\ este

-5

5

25

-25

2.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

 Semnul ı^ntre aceste doua˘ numere 13și 5 esteSemnul\ între\ aceste\ două\ numere\ \sqrt{13}și\ 5\ este  

<

>

=

3.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

 272\sqrt{7}  

Dacă introducem factorul sub radical în expresia de mai sus     obținem următorul rezultat

 14\sqrt{14}  

 98\sqrt{98}  

 28\sqrt{28}  

4.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

  \    Daca˘ scoatem factorul de sub radical dinDacă\ scoatem\ factorul\ de\ sub\ radical\ din  

 numarul\sqrt{128\ }obținem\ 
 

 424\sqrt{2}  

 828\sqrt{2}  

 282\sqrt{8}  

5.

MULTIPLE SELECT QUESTION

5 mins • 1 pt

 Numa˘rul 35 RNumărul\ 3-\sqrt{5}\ \in R_-  

Adevărat

Fals

6.

MULTIPLE SELECT QUESTION

15 mins • 1 pt

 10125+2108+71923245    =-10\sqrt{125}+2\sqrt{108}+7\sqrt{192}-3\sqrt{245\ }\ \ \ =  



 715+683-71\sqrt{5}+68\sqrt{3}  

 175+143-17\sqrt{5}+14\sqrt{3}  

 715683-71\sqrt{5}-68\sqrt{3}  

7.

MULTIPLE SELECT QUESTION

5 mins • 1 pt

 Valoarea acestei expresii 523 este Valoarea\ acestei\ \exp resii\ \left|5-2\sqrt{3}\right|\ este\   

 5+23-5+2\sqrt{3}  

 5+235+2\sqrt{3}  

 5235-2\sqrt{3}