
Números reais
Authored by Albina Tiago Silva
Mathematics
8th Grade

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7 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
x=0
x=4
x=-4
x=4 ou x=-4
2.
FILL IN THE BLANK QUESTION
1 min • 1 pt
Como se denominam os números que têm o mesmo valor absoluto mas sinais contrários?
3.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
Considera o conjunto . Dos elementos de B indica os que são números naturais.
0
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual das seguintes afirmações é verdadeira?
é um número irracional
é um número racional
é um número racional
é um número irracional
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual das seguintes frações não é equivalente a uma fração decimal?
13/25
88/60
42/125
121/32
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A fração representa um número:
natural
inteiro
irracional
racional
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual das opções seguintes apresenta dois números irracionais?
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