
Cálculo de Porcentagens e Descontos

Interactive Video
•
Mathematics
•
5th - 8th Grade
•
Hard
Standards-aligned

Ethan Morris
FREE Resource
Standards-aligned
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual é a representação decimal de 30%?
30,0
3,0
0,3
0,03
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual é a representação fracionária de 30%?
30/100
10/3
1/3
3/10
Tags
CCSS.6.RP.A.3C
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Como você pode calcular 30% de 800 usando frações?
Multiplicando 30 por 800
Dividindo 800 por 30
Multiplicando 30/100 por 800
Multiplicando 0,3 por 800
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual método alternativo pode ser usado para calcular 30% de 800?
Divisão direta
Subtração
Regra de três
Multiplicação simples
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Se 15% dos alunos foram reprovados em uma turma de 80, quantos alunos foram aprovados?
15
68
12
72
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual é a porcentagem de alunos aprovados se 15% foram reprovados?
85%
75%
90%
80%
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Se um salário de R$2000 recebe um aumento de 45%, qual é o novo salário?
R$3000
R$2900
R$2700
R$2450
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