
Números Reais
Authored by Raul Carneiro
Mathematics
8th - 9th Grade
19 Questions
Used 76+ times

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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Considera o conjunto . Dos elementos de A indica o maior número irracional.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Relativamente à medida da diagonal de um quadrado com 1 cm de lado podemos afirmar que:
É superior a 1,5 cm
É igual a 1,41 cm
É inferior a 1,42 cm
É igual a 2 cm
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Podemos afirmar que:
Todo o número real é inteiro.
Todas as dízimas infinitas são números irracionais.
Todo o número natural é real.
Há números irracionais que são fracionários.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A expressão representa o número:
9
10
5.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Classifica em V (verdadeiro) ou F (falso) as seguintes afirmações:
I - Todo número inteiro é também um número natural.
II - A razão entre dois números inteiros não nulos é um número racional.
III - O inverso de +2 é -2
F - V - V
V - V - V
F - F - V
F - V - F
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual dos seguintes números pode ser representado por uma dízima infinita não periódica?
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Determina dois números naturais, a e b, tais que a fração seja igual à dízima infinita periódica 0,(54) .
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