
Digitaliada- Mulțimi
Authored by scoala Roata de Jos
Mathematics
6th Grade
Used 73+ times

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10 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Se consideră mulțimea A={x/ x este literă a cuvântului ”piramidă”}. Cardinalul mulțimii A este:
7
8
6
5
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Se consideră mulțimea: M={ / }. Mulțimea M este:
M={2,3,4,5,6,7}
M={2,3,4,5,6}
M={3,4,5,6,7}
M={3,4,5,6}
3.
MULTIPLE SELECT QUESTION
5 mins • 1 pt
Fie mulțimea A={ / } . Atunci, dintre afirmațiile următoare, adevărate sunt:
este o submulțime a lui A
Mulțimea A are cardinalul egal cu 5
A
4.
MULTIPLE SELECT QUESTION
5 mins • 1 pt
Fie mulțimile A={ * / } și B={ / A}. Atunci:
A B= {1,2}
A și B au cardinale egale
A=B
A B = A B
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Fie mulțimile A={1,2,3,4} și B={4,5,10}. Mulțimea A B este egală cu:
{4}
{1,2,3}
{1,2,3,4,5,10}
{5,10}
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Fie mulțimile A={1,2,3,4} și B={4,5,10}. Mulțimea A \ B este egală cu:
{1,2,3}
{1,2,3,4,5,10}
{4}
{5,10}
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Fie mulțimile A={1,2,3,4} și B={4,5,10}. Mulțimea A B este egală cu:
{1,2,3}
{4}
{1,2,3,4,5,10}
{5,10}
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