Fisa de lucru -  operatii cu numere reale - clasa a 7 -a

Fisa de lucru - operatii cu numere reale - clasa a 7 -a

1st Grade - University

7 Qs

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Fisa de lucru -  operatii cu numere reale - clasa a 7 -a

Fisa de lucru - operatii cu numere reale - clasa a 7 -a

Assessment

Quiz

Mathematics

1st Grade - University

Hard

Created by

VERONICA-ELENA COJANU

Used 27+ times

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7 questions

Show all answers

1.

MULTIPLE SELECT QUESTION

3 mins • 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 SELECT QUESTION

2 mins • 1 pt

 a=23, b=32, c=47, d=62a=-2\sqrt{3},\ b=-3\sqrt{2},\ c=4\sqrt{7},\ d=6\sqrt{2} 

Ordinea crescatoare a numerelor date, este:

b, a,d,c

a,b,c,d

a,b,d,c

b,c,a,d

3.

MULTIPLE SELECT QUESTION

3 mins • 1 pt

 Rezultatul    calculului   4223+523Rezultatul\ \ \ \ calculului\ \ \ \left|4\sqrt{2}-2\sqrt{3}\right|+5\cdot\left|\sqrt{2}-\sqrt{3}\right|  este:

 3\sqrt{3}  

 33+23\sqrt{3}+\sqrt{2}  

 3323\sqrt{3}-\sqrt{2}  

0

4.

MULTIPLE SELECT QUESTION

3 mins • 1 pt

Media aritmetica a numerelor:

 52,48, 3325\sqrt{2},4\sqrt{8},\ -3\sqrt{32} este:

 2\sqrt{2}  

 48-4\sqrt{8}  

 23\frac{\sqrt{2}}{3}  

 83\frac{\sqrt{8}}{3}  

5.

MULTIPLE SELECT QUESTION

2 mins • 1 pt

 Solutiile  reale  ale   ecuatiei:  2x6=3x, sunt:Solutiile\ \ reale\ \ ale\ \ \ ecuatiei:\ \ \frac{2x}{6}=\frac{3}{x},\ sunt:  


 x1=2, x2=2x_1=\sqrt{2},\ x_2=-\sqrt{2}  

 x1=2;x2=2x_1=2;x_2=-2  

 x1=3;x2=3x_1=-3;x_2=3  

 x=13x=-\frac{1}{3}  

6.

MULTIPLE SELECT QUESTION

2 mins • 1 pt

Media geometrica a numerelor: 224 si 96Media\ \ geometrica\ a\ numerelor:\ 2\sqrt{24}\ si\ \ 9\sqrt{6}

este:

36236\sqrt{2}

525\sqrt{2}

18\sqrt{18}

666\sqrt{6}

7.

MULTIPLE SELECT QUESTION

1 min • 1 pt

 Numarul  1,(7) este:Numarul\ \ \sqrt{1,\left(7\right)}\ este:  


intreg

natural

irational

rational