
Matematické otázky
Authored by Ivana Blažíčková
Mathematics
9th Grade

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10 questions
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1.
OPEN ENDED QUESTION
3 mins • 1 pt
V minulém roce se na školu hlásilo 60 žáků a bylo jich přijato 90 %. Kolik jich nebylo přijato?
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2.
OPEN ENDED QUESTION
3 mins • 1 pt
Hokejový brankář chytil v zápase 35 střel, což bylo 70 % všech střel na jeho branku. Kolik střel tento brankář nechytil?
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3.
OPEN ENDED QUESTION
3 mins • 1 pt
Tomáš byl na táboře a spočítal, že pokud bude považovat psa Žeryka za člena skupiny, bylo v jeho skupině 40 % děvčat, 55 % chlapců a 1 pes. Kolik děvčat bylo v Tomášově skupině?
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4.
OPEN ENDED QUESTION
3 mins • 1 pt
Na lyžařském výcviku bylo celkem 19 lyžařů, což odpovídalo 76 % všech účastníků. Zbytek tvořili snowboardisté. Kolik bylo snowboardistů?
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5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Fotbalový míč byl zlevněn z 2 000 na 1 600 Kč. Kolik % činila sleva?
10%
20%
25%
30%
6.
OPEN ENDED QUESTION
3 mins • 1 pt
Nový mobil, který si chtěla Julča koupit, stál v obchodě 10 000 Kč. Pak ale tento mobil zlevnili o 10 % a poté znovu o 10 %. Kolik nyní stojí?
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7.
OPEN ENDED QUESTION
3 mins • 1 pt
Bronz je slitina mědi a cínu. V odlitku bronzového meče bylo 1,7 kg mědi a 0,3 kg cínu. Kolik procent mědi bronz obsahoval?
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