Teste Aritmética - 9º ano (2025)

Quiz
•
Mathematics
•
9th Grade
•
Hard
FILIPE DE SOUZA BENTO
Used 6+ times
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18 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
O número 45 não é um quadrado perfeito, sendo sua raiz quadrada um número irracional.
Sabendo que √45 ≃ 6,708203932..., o seu valor aproximado para duas casas decimais é:
6,70
6,71
6,72
6,78
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Sabendo que √5 ≃ 2,24 e √10 ≃ 3,16, qual é o valor aproximado de √5 + √10?
4,50
5,20
5,40
6,10
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
O resultado da operação √50 ÷ √2 é equivalente a:
5
5√2
12,5
√48
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual o resultado da expressão 5√5 + 6√5 - 4√5?
7√5
8√5
9√5
10√5
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual o resultado da expressão (∛4 × √2)?
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Ao simplificar a raiz quadrada de 72, obtemos:
6√2
4√3
9√8
8√2
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual a forma equivalente de 5√3 ao introduzir o termo 5 no radical?
√60
√45
√75
√15
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