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Antwoorden oefentoets H1 wiskunde a getal en ruimte 4 HAVO
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Antwoorden oefentoets H1 wiskunde a getal en ruimte 4 HAVO
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HAVO A DEEL 1 CORRECTIEVOORSTEL OEFENTOETSHOOFDSTUK 1 REKENREGELS EN VERHOUDINGEN
TOTAAL 42P
OPGAVE 1 TOTAAL 6P
1p a 5 ∙ 10 11
1p
2p b 500 miljard per jaar is per minuut 1p
De bewering is dus (net) niet juist. 1p
3p c weggegooide plasticflessen per Amerikaan per jaar 2p
Dat is per plasticfles dagen, dus een gemiddelde Amerikaan
gebruikt een plasticfles dus ongeveer 3,3 dagen. 1p
OPGAVE 2 TOTAAL 5P
2p a 3 ∙ 500 = 1500 m = 1,5 ∙ 10 L
3 6
1p
, dus 12 600 mensen. 1p
3p b Het duurt seconden. 1p
Dat is uur ≈ 13 uur en 14 minuten. 2p
OPGAVE 3 TOTAAL 9P
2p a totale aantal km jaarlijks = 2,1 ∙ 10 ∙ 8 ∙ 12 = 2,016 ∙ 10
6 8
1p
Dat is dus keer om de aarde. 1p
2p b is man 2p
2p c Het verschil is 19 – 15 = 4 delen. 1p
Dat zijn dus mannen meer. 1p
3p d De tijden van de atleten zijn uur en uur. 1p
Het verschil is dus 0,065… – 0,059 … = 0,0067… uur. 1p
Dus 0,0067… ∙ 60 ∙ 60 ≈ 24 seconden verschil. 1p
© NOORDHOFF 2015 CORRECTIEVOORSTEL OEFENTOETS HAVO A DEEL 1 HOOFDSTUK 1
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