
Matemática 8º anos
Authored by izilda cabral
Mathematics
1st Grade
CCSS covered
Used 29+ times

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10 questions
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1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Resolva as adições de monômios abaixo:
15ax + 6ax =
21ax
21a2x2
9 ax
15ax + 6ax
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
O número 0,000 005 2 em notação científica, escreve-se:
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
O gráfico de setores apresenta o resultado de uma pesquisa feita com 1.200 pré-adolescentes de 10 a 13 anos do Colégio Estudebem. Qual é o número médio de horas de sono da maioria dos pré-adolescentes entrevistados?
6 horas
8 horas
9 horas
10 horas
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Qual a medida do complemento do ângulo de 17°?
Não possui complemento.
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
A fração geratriz da dízima periódica 0,444... é igual a:
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
O valor da expressão é:
6
8
60
80
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
(3x⁴) . (-5x³) =
-15x⁷
-15 x
15x⁷
-15x4x3
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