
1.ª eliminatória
Authored by Sandra Cadima
Mathematics
8th Grade

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25 questions
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1.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Qual das seguintes afirmações é falsa?
24 x 28 = 212
39 : 39 = 1
2-5 x 4-5 = 8-10
5-3 : 5-4 = 5
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
1
3.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
O valor da expressão
4 + 6 x (-2)
é igual a :
-20
16
8
-8
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
A equação 2x -4 = -14 tem como solução
0
-5
9
5
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
50 + 6-1 é igual a:
1
11
6.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
(-2)5 x (-2)-5 é igual a :
0
(-2)10
1
(-2)-10
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Equação é uma relação de igualdade entre duas expressões que contém ao menos uma incógnita representando um valor desconhecido, o qual tornará a igualdade verdadeira quando for determinado. Qual dos itens baixo NÃO é equação?
2x + 3 = 8
34 + 54 - 32 = 56
3m + 2 = 8
2x - 6 = 6x + 13
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