Question 1

Bereken $(-8)^2+(-1)^2=$

Accepted Answer

$64+1=65$

Question 2

Bereken $-8^2\div 2^2+6 \cdot 3^2=$

Accepted Answer

$-64 \div 4+6 \cdot 9=-16+54=38$

Question 3

Vul op de juiste wijze in: $y=-4x^2-5$ als $x=-5$ (verder niks berekenen!)

Accepted Answer

$y=-4 \cdot (-5)^2-5$

Question 4

Vul op de juiste wijze in: $y=-x^2+4$ als $x=-4$ (verder niks berekenen!)

Accepted Answer

$y=-(-4)^2+4$

Question 5

Bereken op welke hoogte de slingers vast zitten

Accepted Answer

$h=0,5 \cdot (-4)^2+4=12 $

Question 6

Bereken (met tussenstappen) $2 \cdot \sqrt{64}-3 \cdot \sqrt{49}$

Accepted Answer

$2 \cdot 8-3 \cdot 7=16-21=-5$

Question 7

Bereken (met tussenstappen) $\sqrt{121} \cdot \sqrt{25}$

Accepted Answer

$11 \cdot 5=55$

Question 8

Herleid  $5a-7a$

Accepted Answer

$-2a$

Question 9

Herleid $3a--2a+a$

Accepted Answer

$6a$

Question 10

Herleid $-5a \cdot 3ab$

Accepted Answer

$-15a^2b$

Question 11

Herleid $3x-7y$

Accepted Answer

$3x-7y$

Question 12

Vul in: $12a = 6a \cdot ...$

Accepted Answer

$2$

Question 13

Vul in: $21xy=3x \cdot ...$

Accepted Answer

$7y$

Question 14

Vul in: $5x = 2x - ...$

Accepted Answer

$-3x$

Question 15

Herleid $\dfrac{-8pqr}{2pr}$

Accepted Answer

$-4q$

Question 16

Herleid (met tussenstap) $\dfrac{6x}{3}+3x$

Accepted Answer

$2x+3x=5x$

Question 17

Herleid de 1e tussenstap van  $\frac{a}{b}+\frac{b}{a}$

Accepted Answer

$\frac{a^2}{ab} + \frac{b^2}{ab}$

Question 18

Herleid (zonder tussenstappen) $\frac{2}{p}-\frac{2}{q}$

Accepted Answer

$\frac{2q-2p}{pq}$

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