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Test je voorkennis: Rekenen met rationale getallen

Total questions: 20

Worksheet time: 10mins

Name
Class
Date
1.

52=-5^2=  

a)

10

b)

25

c)

-25

d)

-10

2.

34+2=\frac{-3}{4}+2=  

a)

58\frac{5}{8}  

b)

14\frac{-1}{4}  

c)

12\frac{-1}{2}  

d)

54\frac{-5}{4}  

3.

14=\sqrt{\frac{-1}{4}}=  

a)

bestaat nietbestaat\ niet  

b)

14\frac{1}{4}  

c)

12\frac{-1}{2}  

d)

12\frac{1}{2}  

4.

(x3)5\left(x^{-3}\right)^5  

a)

x2x^2  

b)

x15x^{15}  

c)

1x8\frac{1}{x^8}

d)

1x15\frac{1}{x^{15}}  

5.

(2a)3\left(2a\right)^3  

a)

2a32a^3  

b)

8a8a  

c)

8a38a^3

d)

6a6a  

6.

x2yyx3x^2\cdot y\cdot y\cdot x^3  

a)

x5y2x^5y^2  

b)

x6yx^6y  

c)

x6y2x^6y^2

d)

x5yx^5y  

7.

y3y5y2\frac{y^3\cdot y^5}{y^2}  

a)

y4y^4  

b)

y10y^{10}  

c)

y13y^{13}  

d)

y6y^6  

8.

Welke eigenschap van de bewerkingen werd toegepast:

(35+x)y=y(35+x)\left(\frac{3}{5}+x\right)\cdot y=y\cdot\left(\frac{3}{5}+x\right)

a)

De vermenigvuldiging is commutatief

b)

De optelling is commutatief

c)

De vermenigvuldiging is associatief

d)

De optelling is associatief

9.

Duid het juiste antwoord aan:

(37)0=\left(\frac{-3}{7}\right)^0=

a)

0

b)

1

c)

-1

d)

37\frac{-3}{7}

10.

Het tegengestelde van de even macht van een negatief grondtal is altijd ...

a)

positief

b)

negatief

11.

(0,05)2=\left(0,05\right)^2=

a)

2,5

b)

0,25

c)

0,025

d)

0,0025

12.

(23)4=\left(\frac{-2}{3}\right)^{-4}=

a)

1681\frac{-16}{81}

b)

1681\frac{16}{81}

c)

8116\frac{-81}{16}

d)

8116\frac{81}{16}

13.

xmxn=\frac{x^{-m}}{x^{-n}}=

a)

x(mn)x^{\left(-m-n\right)}

b)

x(m+n)x^{\left(-m+n\right)}

c)

x(mn)x^{\left(m-n\right)}

d)

x(m+n)x^{\left(m+n\right)}

14.

(x+y)2=...\left(x+y\right)^2=...

a)

x2+y2x^2+y^2

b)

x2+xy+y2x^2+xy+y^2

c)

x2+2xy+y2x^2+2xy+y^2

d)

x2+2x2y2+y2x^2+2x^2y^2+y^2

15.

(6m)(6+m)=...\left(6-m\right)\cdot\left(6+m\right)=...

a)

36m236-m^2

b)

36+m236+m^2

c)

m236m^2-36

d)

6m26-m^2

16.

(c3)(3c)=...\left(-c-3\right)\cdot\left(-3-c\right)=...

a)

c29c^2-9

b)

c2+6c+9c^2+6c+9

c)

c2+9c^2+9

d)

c2+6c+9c^2+6c+9

17.

5(4x)=5\cdot\left(4\cdot x\right)=

a)

20+5x

b)

20+x

c)

20x

18.

(52):53\left(-\frac{5}{2}\right):\frac{5}{3}  

a)

23-\frac{2}{3}  

b)

32-\frac{3}{2}  

c)

256-\frac{25}{6}  

d)

32\frac{3}{2}  

19.

4ab\frac{4}{a-b}

a)

4a4b\frac{4}{a}-\frac{4}{b}

b)

4a1b\frac{4}{a}-\frac{1}{b}

c)

1a4b\frac{1}{a}-\frac{4}{b}

d)

41ab4\cdot\frac{1}{a-b}

20.

6xy=\frac{-6}{x\cdot y}=

a)

61x1y-6\cdot\frac{1}{x}\cdot\frac{1}{y}

b)

6x6y\frac{-6}{x}\cdot\frac{6}{y}

c)

6x6y\frac{-6}{x}\cdot\frac{-6}{y}