
Quiz das Expressões
Authored by Edlânia Souza
Mathematics
8th Grade
Used 2+ times

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13 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Numa expressão algébrica, a letra que representa qualquer número racional pode ser chamada de:
Variável
Expressão
Letra
Terço
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Na linguagem matemática a expressão " A soma entre um número e sete" pode ser representada por:
x - 7
7 + 1
7x
x + 7
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Na linguagem matemática a expressão " o dobro de um número" pode ser representada por:
2
2x
x
4x
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A expressão 4x + 1, pode ser escrita de qual forma:
Quatro x menos um
A quarta parte de um número mais um
Um menos quatro
O quadruplo de um número mais um
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Podemos representar a expressão: " a diferença entre o dobro de um número e nove" de qual das seguintes maneiras?
9 - 2
2x - 9
2x + 9
-2x + 9
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Sabendo que x = 4 e y = -1, qual o valor da expressão x + y?
5
3
-5
-3
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Sabendo que x = 3, qual o valor da expressão 3x + 5?
8
5
14
15
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