
Expressões variáveis

Quiz
•
Mathematics
•
5th Grade
•
Hard
Dr Antunes
Used 7+ times
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
45 sec • 2 pts
Qual das expressões representa o perímetro da figura?
5n+1
6n
4n+1
5n
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual o valor da expressão x + 2x para x=8 ?
10
20
24
16
3.
MULTIPLE CHOICE QUESTION
1 min • 2 pts
A Susana pensou num número, multiplicou-o por 4 e subtraiu 3 ao produto. Seja x o nº em que pensou. Qual a expressão que traduz a situação descrita?
3 - 4x
4x + 3
3x + 4
4x - 3
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual das expressões seguintes é equivalente à expressão
y + 4 + 3y - 1 ?
4y + 4
4y + 3
7y + 3
7y
5.
MULTIPLE CHOICE QUESTION
45 sec • 3 pts
Qual das expressões representa o perímetro do retângulo da figura?
6x + 3
4x + 3
4x + 6
6x + 6
6.
MULTIPLE CHOICE QUESTION
45 sec • 2 pts
Cada cesto tem x maçãs. Do primeiro cesto foram vendidas 12, do segundo 8 e do terceiro 20. Quantas maçãs ainda têm para vender?
x - 40
40 - x
40 - 3x
3x - 40
7.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Qual a diferença entre o perímetro do quadrado e o perímetro do triângulo equilátero com a mesma base do quadrado?
1
x - 1
x
3x
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