
Mathematics Concepts
Flashcard
•
Mathematics
•
8th Grade
•
Practice Problem
•
Easy
Matica Dan
Used 1+ times
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30 questions
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1.
FLASHCARD QUESTION
Front
Cardinalul unei mulţimi reprezintă câte elemente are acea mulţime.
Back
Mulţimea vidă (Ф) nu are niciun element.
2.
FLASHCARD QUESTION
Front
Numerele naturale fără 0 sunt: 1, 2, 3,...
Back
Numerele naturale sunt: 0, 1, 2, 3,...
3.
FLASHCARD QUESTION
Front
Numerele raţionale sunt de forma a/b, unde a și b sunt întregi.
Back
Numerele întregi includ: 4, 0, 9, 12.
4.
FLASHCARD QUESTION
Front
Exemple de numere iraţionale includ √2 și π.
Back
Numerele iraţionale nu pot fi exprimate ca fracţii.
5.
FLASHCARD QUESTION
Front
Diferenţa între două mulţimi se notează cu (−).
Back
Operaţiile cu mulţimi includ reuniunea (∪) și intersecția (∩).
6.
FLASHCARD QUESTION
Front
Un număr impar are forma 2k + 1.
Back
Un număr par are forma 2k, unde k este un număr întreg.
7.
FLASHCARD QUESTION
Front
Exemple de pătrate perfecte: 0, 1, 4, 9, 16, 25.
Back
Un pătrat perfect are rădăcina întreagă.
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