test reguli de calcul cu puteri: 10-Question Practice Test

10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 10 pts

Rezultatul calcului $5^{26}\div5^{25}$ este:

5

$5^{51}$

$5^{49}$

1

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Dacă $2^{34}.\ 2^{15}=2^n$ , atunci n este:

525

29

16

49

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Rezultatul calculului $3^{12}.\ 2^{12}$ este:

$6^{24}$

$6^{12}$

6

$3^{12}$

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Scris sub forma unei singure puteri $\left(3^4\right)^7$ este:

3

$3^3$

$3^{11}$

$3^{28}$

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Calculând $15^4\div3^4$ obținem:

$5^4$

$15^4$

$5^8$

5

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Dacă $6^n.6^3=6^5$ atunci n este:

3

5

6

2

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Dacă $8^{13}\div8^n=8^{10}$ atunci n este:

3

10

13

23

8.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Dacă $\left(7^n\right)^4=7^{20}$ atunci n este:

4

5

7

16

9.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Dacă $n^6.\ 2^6=8^6$ atunci n este:

6

8

2

4

10.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Rezultatul calcului $3^4\div\left(3^2\right)^2$ este:

1

$3^4$

$3^2$

0

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test reguli de calcul cu puteri

Rezultatul calcului 526÷5255^{26}\div5^{25}526÷525 este:

Dacă 234. 215=2n2^{34}.\ 2^{15}=2^n234. 215=2n , atunci n este:

Rezultatul calculului 312. 2123^{12}.\ 2^{12}312. 212 este:

Scris sub forma unei singure puteri (34)7\left(3^4\right)^7(34)7 este:

Calculând 154÷3415^4\div3^4154÷34 obținem:

Dacă 6n.63=656^n.6^3=6^56n.63=65 atunci n este:

Dacă 813÷8n=8108^{13}\div8^n=8^{10}813÷8n=810 atunci n este:

Dacă (7n)4=720\left(7^n\right)^4=7^{20}(7n)4=720 atunci n este:

Dacă n6. 26=86n^6.\ 2^6=8^6n6. 26=86 atunci n este:

Rezultatul calcului 34÷(32)23^4\div\left(3^2\right)^234÷(32)2 este:

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Rezultatul calcului $5^{26}\div5^{25}$ este:

Dacă $2^{34}.\ 2^{15}=2^n$ , atunci n este:

Rezultatul calculului $3^{12}.\ 2^{12}$ este:

Scris sub forma unei singure puteri $\left(3^4\right)^7$ este:

Calculând $15^4\div3^4$ obținem:

Dacă $6^n.6^3=6^5$ atunci n este:

Dacă $8^{13}\div8^n=8^{10}$ atunci n este:

Dacă $\left(7^n\right)^4=7^{20}$ atunci n este:

Dacă $n^6.\ 2^6=8^6$ atunci n este:

Rezultatul calcului $3^4\div\left(3^2\right)^2$ este: