
8 º Ano 2025
Authored by Sandra Rodrigues
Mathematics
8th Grade
Used 11+ times

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15 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
O preço do quilo de carne em um açougue é dado pela função p = 9x – 3, sendo x a quantidade de quilos de carne comprada. O preço de 6 quilos de carne é:
R$54,00
R$50,00
R$51,00
R$62,00
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual é o valor da expressão:10 +100 - 10-100 é?
200
220
210
0
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Calcule 10 -2
20
100
1/100
1/20
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Após encontrar o resultado da potência a seguir, e multiplicá-lo por – 30, encontra-se:
(– 5)3
– 3750
1700
125
225
3750
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Doze pessoas foram convidadas para uma festa e apenas 8 compareceram. Qual a fração que indica a ausência?
12/8
6/4
3/2
1/3
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Calcule o valor da expressão: -10² - 18 .
2
92
82
-2
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Um número multiplicado por 2 e somado com 5 é igual a 15. Qual é esse número?
2
-2
-5
5
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