Numere reale Quiz: 15 Practice Questions (Grade 7)

15 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

$\frac{-15}{3}$ $\in$

N

Z

R\Q

2.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

$\sqrt[]{1\ \frac{24}{25}}$ este

natural

intreg

rational

irational

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

dintre numerele a= $\sqrt[]{10}$ si b=3 mai mare este

a

b

sunt egale

4.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

$\sqrt[]{24}=$

$3\sqrt[]{8}$

$8\sqrt[]{3}$

$2\sqrt[]{6}$

$6\sqrt[]{2}$

5.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Daca $\sqrt[]{a+7}=4$ , atunci a=

3

4

7

9

6.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Rezultatul calculului $\left(\sqrt[]{144}-\sqrt[]{49}\right):\left(\sqrt[]{121}-\sqrt[]{36}\right)$ este

0

5

1

2

7.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Introducand factorii sub radical, $3\sqrt[]{5}$ este egal cu:

$\sqrt[]{75}$

$\sqrt[]{45}$

$\sqrt[]{35}$

$5\sqrt[]{3}$

8.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

$\sqrt[]{3^2+4^2}-\sqrt[]{10^2-8^2}$ =

12

-1

1

5

9.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

$\sqrt[]{500}=$

$5\sqrt[]{10}$

$10\sqrt[]{5}$

$5\sqrt[]{2}$

$20\sqrt[]{5}$

10.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Cel mai mare numar natural mai mic decat $\sqrt[]{20}$ este:

4

5

10

19

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Numere reale

−153\frac{-15}{3}3−15​ ∈\in∈

1 2425\sqrt[]{1\ \frac{24}{25}}1 2524​​ este

dintre numerele a= 10\sqrt[]{10}10​ si b=3 mai mare este

24=\sqrt[]{24}=24​=

Daca a+7=4\sqrt[]{a+7}=4a+7​=4 , atunci a=

Rezultatul calculului (144−49):(121−36)\left(\sqrt[]{144}-\sqrt[]{49}\right):\left(\sqrt[]{121}-\sqrt[]{36}\right)(144​−49​):(121​−36​) este

Introducand factorii sub radical, 353\sqrt[]{5}35​ este egal cu:

32+42−102−82\sqrt[]{3^2+4^2}-\sqrt[]{10^2-8^2}32+42​−102−82​ =

500=\sqrt[]{500}=500​=

Cel mai mare numar natural mai mic decat 20\sqrt[]{20}20​ este:

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$\frac{-15}{3}$ $\in$

$\sqrt[]{1\ \frac{24}{25}}$ este

dintre numerele a= $\sqrt[]{10}$ si b=3 mai mare este

$\sqrt[]{24}=$

Daca $\sqrt[]{a+7}=4$ , atunci a=

Rezultatul calculului $\left(\sqrt[]{144}-\sqrt[]{49}\right):\left(\sqrt[]{121}-\sqrt[]{36}\right)$ este

Introducand factorii sub radical, $3\sqrt[]{5}$ este egal cu:

$\sqrt[]{3^2+4^2}-\sqrt[]{10^2-8^2}$ =

$\sqrt[]{500}=$

Cel mai mare numar natural mai mic decat $\sqrt[]{20}$ este: