Free Printable Potencije

Free Printable Worksheets

Worksheets

Potencije

Total questions: 24

Worksheet time: 20mins

Name

Class

Date

1.

Koliko je (-3)²?

a)

-6

b)

6

c)

9

d)

-9

2.

Kvadriraj.

$\left(2xy\right)^2$

a)

4xy

b)

8xy

c)

$4x^2y^2$

d)

$8xy^2$

e)

$4xy^2$

3.

$\frac{9^2}{5}=$

a)

$\frac{18}{5}$

b)

$\frac{81}{25}$

c)

$\frac{81}{5}$

d)

$\frac{18}{25}$

4.

$\left(\frac{2a}{9}\right)^2=$

a)

$\frac{4a}{81}$

b)

$\frac{4a^2}{81}$

c)

$\frac{4a^2}{9}$

d)

$\frac{4^2a^2}{81}$

5.

$-3x\cdot2x\ =$

a)

$-\ 6x^2$

b)

$-\ 6x$

c)

$5x$

d)

$-5x^2$

6.

$\left(a+6\right)\left(a\ +2\right)=$

(a)

7.

$7\ +\ 6^2\ =$

a)

44

b)

43

c)

41

d)

42

8.

$2a^2\ +\ 5a\ -a^2-7a=$

a)

$-a$

b)

$-\ a^2$

c)

$a^2-2a$

d)

- 1

9.

Izračunaj: $3^7:3^4$

(a)

10.

Zapiši u obliku potencije broja 10:

$10\cdot10\cdot10\cdot10\cdot10\cdot10=$

(a)

11.

Pomnoži:

10^{10}\cdot10^2=

a)

$10^8$

b)

$10^{12}$

c)

$10^{10}$

d)

$10^5$

12.

Podijeli:

10^{21}:10^7=

a)

$10^3$

b)

$10^{14}$

c)

$10^{28}$

13.

Zapiši u obliku potencije broja 10:

10 000 000

(a)

14.

Izračunaj:

4\cdot10^4+3\cdot10^4+10^4=

a)

$7\cdot10^4$

b)

$8\cdot10^{12}$

c)

$8\cdot10^4$

d)

$7\cdot10^{12}$

15.

Izračunaj:

1.23\cdot10^4=

a)

1230

b)

12300

c)

0.000123

16.

$10^3$ jednako je

a)

30

b)

3 000

c)

1000

17.

$3^2$ jednako je

(a)

18.

$2^3=3^2$

a)

uvijek

b)

ponekad

c)

nikad

d)

neznam

19.

Izračunaj: $5a^2+4a^2-7a^2$

a)

$2a^6$

b)

$3a^4$

c)

$2a^2$

d)

$2a^4$

20.

Prikaži u znanstvenom zapisu 35000

a)

$35\cdot10^3$

b)

$0.35\cdot10^5$

c)

$3.5\cdot10^4$

d)

$35\cdot10^{-3}$

21.

Kako se zove broj 10 u izrazu $10^{123}$ ?

a)

baza

b)

eksponent

c)

potencija

22.

U potenciji $10^2$ eksponent iznosi

a)

10

b)

100

c)

2

23.

Zapiši broj sto milijuna u obliku potencije

a)

$10^6$

b)

$10^7$

c)

$10^8$

d)

$10^9$

24.

Koliko je $\left(2a-3b\right)\left(2a+3b\right)?$

a)

$2a^2-3b^2$

b)

$4a^2+9b^2$

c)

$4a^2-9b^2$

d)

$-5a^2b^2$

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