
Eletiva de Matemática - 8° ano
Authored by Felipe Moura
Performing Arts
1st Grade
Used 3+ times

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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 15 pts
Na kombi que entrei havia 8 passageiros. Pouco depois, 3 pessoas desceram e duas entraram. Quantas pessoas há na kombi?
9
7
8
6
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Sabe-se que a gasolina brasileira tem uma tolerância máxima de 25% de álcool em seu composto.
Qual quantidade máxima de litros de álcool pode ser encontrada num tanque com 50 litros de gasolina?
12,5 L
15,5 L
20,5 L
25,5 L
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Na soma e subtração de números inteiros existem algumas curiosidades. Observe os exemplos a seguir:
3 + (– 4) = – 1;
– 2 + (– 1) = – 3
Sobre esses fatos, o valor que devo subtrair de – 3 para que o resultado seja – 11 é
+8
-8
+14
-14
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Alex é pedreiro e foi contratado para construir 25 casas.
Ele já construiu 12 das casas.
A fração que representa o número de casas que ainda faltam para ser construída é
25/12
12/25
25/13
13/25
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Ana comprou 12 ovos e utilizou 8 para fazer suspiro. A fração que representa a quantidade de ovos que sobraram é?
8/4
4/8
4/12
8/12
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Para fazer um bolo, Alessandra gastou R$ 26,50. Ela vendeu o bolo por R$ 37,50.
Ele teve um lucro de?
R$ 64,00
R$ 11,95
R$ 11,00
R$ 10,95
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
58
- 58
68
- 68
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