Revisão bimestral -8° ano | Matemática
Quiz
•
Mathematics
•
8th Grade
•
Practice Problem
•
Hard
Used 26+ times
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15 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual foi o primeiro conjunto numérico a ser identificado?
Racionais
Irracionais
Reais
Naturais
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Quais afirmações a seguir estão corretas?
Um conjunto sempre será um agrupamento de elementos.
Nunca poderá ter elementos de 2 conjuntos numéricos diferentes.
Os elementos são essenciais em um conjunto.
O conjunto Universo é chamado assim por agrupar os números racionais.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual item abaixo possui apenas elementos de um conjunto?
A,b,C,d,e.
a,b,c,d,E.
a,B,c,d,E.
a,b,c,d,e.
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Sobre os termos e definições essenciais dos conjuntos, podemos afirmar que:
Símbolos de pertinência são usados apenas entre conjuntos.
Os conjuntos só são iguais quando um está dentro do outro.
O conjunto A={0} é um conjunto vazio.
O símbolo pertence é usado para relacionar elementos e conjuntos.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Os valores de 8-5 e 5-8 são respectivamente:
3 e 3.
3 e -3.
5 e 8.
-3 e 3.
6.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
É unitário o conjunto:
{x ∈ N│1 < 2x < 4}
{x ∈ Q│x2 < 2}
{x ∈ R│x2 = 1}
{x ∈ Z│x2 > 0}
7.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
O valor da expressão (-1)0 + (-6) : (-2) – 24 é:
-20.
-12.
19,5.
12.
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