
Adição, Subtração e Dízimas Periódicas
Interactive Video
•
Mathematics
•
8th Grade
•
Practice Problem
•
Medium
Ethan Morris
Used 2+ times
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual é a forma mais fácil de trabalhar com adição e subtração de números racionais?
Forma fracionária
Forma decimal
Forma exponencial
Forma binária
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
O que é uma dízima periódica?
Um número irracional
Um número inteiro
Um número decimal infinito com casas decimais repetidas
Um número decimal finito
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual é o período da dízima periódica 1,353535?
1
35
3535
535
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Como se transforma um número decimal em fração?
Multiplicando por 100
Dividindo pelo número de casas decimais
Somando 1 ao número
Escrevendo o número sem a vírgula como numerador e uma potência de 10 como denominador
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual é a fração correspondente ao decimal 0,047?
47/10000
47/10
47/100
47/1000
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Como se converte a fração 12/8 em decimal?
1,6
1,2
1,4
1,5
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual é o resultado de -2,4 + 1/4 na forma decimal?
-2,15
-2,25
-2,50
-2,65
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