
Expressões algébricas
Authored by Francisca Andrade
Mathematics
2nd Grade
Used 4+ times

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10 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:
Váriavel
Expressão
Letra
Terço
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Na linguagem matemática a expressão " o dobro de um número" pode ser representada por:
2
2x
x
4
3.
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
7x
7 + 1
x + 7
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
O quádruplo de um número mais um
Um menos quatro
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
2
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Sabendo que x = 3, qual o valor da expressão 3x + 5?
8
14
5
15
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Sabendo que x = 4 e y = -1 , qual o valor da expressão x + y
5
-5
-3
3
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