
Desafios com Números Reais
Authored by João Paulo Duarte
Mathematics
9th Grade

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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
O número 3/4 é um número racional?
Não, 3/4 é um número inteiro.
Sim, 3/4 é um número irracional.
Não, 3/4 não é um número real.
Sim, 3/4 é um número racional.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual é o resultado de 5 + (-3)?
5
2
3
1
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Compare os números 2,5 e 2,75: qual é maior?
2,5
2,0
3,0
2,75
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Como representar o número -1,5 na reta numérica?
O ponto -1,5 deve ser marcado 1,5 unidades à direita do zero na reta numérica.
O ponto -1,5 deve ser marcado 1,5 unidades à esquerda do zero na reta numérica.
O ponto -1,5 deve ser marcado na posição 1,5 na reta numérica.
O ponto -1,5 deve ser marcado 0,5 unidades à esquerda do zero na reta numérica.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
O número √2 é racional ou irracional?
natural
irracional
racional
inteiro
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual é o resultado de 10 - 3,5?
6,5
7,5
8,0
5,0
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual é a soma de 1/3 e 2/3?
2
1
3/3
1/2
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