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Bianca-Nicoleta SECHEL

3 years

Mathematics

5th

grade

Reguli de calcul cu puteri

Bianca-Nicoleta SECHEL

3.9K
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16 questions

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1. Multiple Choice
30 seconds
1 pt
Rezultatul corect pentru
$a^n\cdot a^m$
$a^{n+m}$
$a^{n-m}$
$a^{n\cdot m}$
$a^n\cdot b^n$
2. Multiple Choice
30 seconds
1 pt
Rezultatul corect pentru
$a^n:a^m$
$a^{n+m}$
$a^{n-m}$
$a^{n\cdot m}$
$a^n\cdot b^n$
3. Multiple Choice
30 seconds
1 pt
Rezultatul corect pentru
$\left(a^n\right)^m$
$a^{n+m}$
$a^{n-m}$
$a^{n\cdot m}$
$a^n\cdot b^n$
4. Multiple Choice
30 seconds
1 pt
Rezultatul corect pentru
$\left(a^{ }\cdot b\right)^n$
$a^{n+m}$
$a^{n-m}$
$a^{n\cdot m}$
$a^n\cdot b^n$
5. Multiple Choice
30 seconds
1 pt
La puterea
$4^5$ care este baza?
4
5
6. Multiple Choice
30 seconds
1 pt
Rezultatul calculului
$2^4+3^2$ este:
14
22
25
17
7. Multiple Choice
30 seconds
1 pt
Rezultatul calculului
$15^{26}:15^{25}$ este:
1
$15^{51}$
15
225
8. Multiple Choice
30 seconds
1 pt
Rezultatul calculului :
$\left(2^9\right)^7$ este:
$2^2$
$2^{16}$
$2^{63}$
$18^7$
9. Multiple Choice
30 seconds
1 pt
Scris sub forma unei singure puteri numerele:
$3^{16}\cdot7^{16}$ , rezultatul va fi:
$10^{16}$
$21^{16}$
$21^{32}$
$21^{256}$
10. Multiple Choice
30 seconds
1 pt
Ultima cifra a numarului $2^{421}$ este:
1
4
2
6
11. Multiple Choice
30 seconds
1 pt
Valoarea lui x din urmatoarea egalitate este:
$\left(7^x\right)^9=7^{81}$
9
7
8
6
12. Multiple Choice
30 seconds
1 pt
Rezultatul calculului
$1^{2020}+0^{2020}+2020^0=$
este:
2021
4041
2
3
13. Multiple Choice
30 seconds
1 pt
$2^{7\ }\cdot2^5$
$2^2$
$2^{12}$
$2^6$
$2^3$
14. Multiple Choice
30 seconds
1 pt
$2^{9\ }:\ 2^5$
$2^2$
$2^{12}$
$2^{14}$
$2^4$
15. Multiple Choice
30 seconds
1 pt
$\left(2^3\right)^5:\ 2^{12}$
$2^2$
$2^{12}$
$2^3$
$2^4$
16. Multiple Choice
30 seconds
1 pt
Rezultatul calculului $10^{60}:10^{50}-10^{10}$ este egal cu:
1
0
$10^{20}$
$10^{100}$
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