
Cálculo de Porcentagens e Descontos
Interactive Video
•
Mathematics
•
5th - 8th Grade
•
Practice Problem
•
Hard
Ethan Morris
FREE Resource
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
O que é uma porcentagem?
Uma multiplicação de valores
Um número aleatório
Uma razão com denominador 100
Uma soma de valores
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual das seguintes opções representa 40% na forma decimal?
0,04
4,0
0,40
40,0
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual é a forma fracionária de 20%?
2/10
20/10
200/1000
20/100
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
O que significa um desconto de 10% em um produto?
Dividir o preço por 10
Aumentar o preço em 10%
Multiplicar o preço por 10
Reduzir o preço em 10%
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual é a importância de entender aumentos e descontos percentuais no cotidiano?
Para calcular a área de um círculo
Para entender promoções e reajustes de contas
Para resolver equações quadráticas
Para medir a temperatura
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Se o salário de José era R$ 2.000,00 e ele recebeu um aumento de 20%, qual é o valor do aumento?
R$ 2.000,00
R$ 200,00
R$ 400,00
R$ 2.400,00
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual será o novo salário de José após o aumento de 20%?
R$ 2.600,00
R$ 2.400,00
R$ 2.200,00
R$ 2.000,00
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