Operatii cu numere irationale - 8 decembrie 2020

Operatii cu numere irationale - 8 decembrie 2020

3rd Grade

11 Qs

quiz-placeholder

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Operatii cu numere irationale - 8 decembrie 2020

Operatii cu numere irationale - 8 decembrie 2020

Assessment

Quiz

Mathematics

3rd Grade

Medium

Created by

MIHAELA ALINA CIUCĂ

Used 8+ times

FREE Resource

11 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Numerele pătrate perfecte mai mici decât 90 sunt:

1, 4,8, 9, 15, 64, 81, 90

4,9,16,25,36,49,64, 81

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Rezultatul calculului  62+82\sqrt{6^2+8^2}  este

14

10

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Dintre numerele  23 2\sqrt{3}\   și  323\sqrt{2}  mai mare este

 323\sqrt{2}  

 232\sqrt{3}  

sunt egale

4.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

 Media aritmetica˘ a numerelor x=3+28 și y=542 este un numa˘rMedia\ aritmetică\ a\ numerelor\ x=3+2\sqrt{8\ }și\ y=5-4\sqrt{2}\ este\ un\ număr  

natural

irațional

rațional

5.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Duoă raționalizarea numitorului , rezultatul sumei  112+13\frac{1}{\sqrt{12}}+\frac{1}{\sqrt{3}}  este

 33\frac{\sqrt{3}}{3}  

 3\sqrt{3}  

 36\frac{\sqrt{3}}{6}  

6.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Aria unui dreptunghi cu dimensiunile de  52 și 3185\sqrt{2}\ și\ 3\sqrt{18}  este

 8208\sqrt{20}  

90

 45245\sqrt{2}  

7.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Latura unui pătrat cu aria de 288  cm2cm^2  este 

144 cm

 12212\sqrt{2}  cm

72 cm

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