
Expressão algébrica
Presentation
•
Mathematics
•
9th Grade
•
Medium
MICHELLE KITAKAWA
Used 3+ times
FREE Resource
1 Slide • 10 Questions
1
​
By MICHELLE KITAKAWA
2
Multiple Choice
Quando x = -7, a expressão 3x + 21 terá valor numérico igual a
42
21
-21
0
3
Multiple Choice
Qual das opções é uma expressão simplificada de 4x+x+x+2x+x ?
6x+3
5x
9x
6x
4
Multiple Choice
O que acontece com o valor da expressão x + 5, quando x aumenta?
Aumenta
Diminui
Permanece o mesmo
5
Multiple Choice
O que acontece com a expressão 15 - x quando x aumenta?
Aumenta
Diminui
Permanece o mesmo
6
Multiple Choice
Qual o valor da soma algébrica 7a + 3a ?
10a
4a
-4a
-10a
7
Multiple Choice
Um quadrado tem lado medindo 3a. Que monômio representa o perímetro desse quadrado?
6a
8a
12a
12a²
8
Multiple Choice
Um retângulo tem base medindo b e altura cuja medida é h. Qual expressão algébrica representa o perímetro desse retângulo?
2bh
2b + 2h
bh
b + h
9
Multiple Choice
O valor de x² - y² para x = 3 e y = 2 é
5
13
10
Multiple Choice
José tem 12 anos, a expressão algébrica que representa a idade de José teve há x anos atrás é:
12 + x
12 - x
11
Multiple Choice
Qual das expressões algébricas representa uma o perímetro da figura?
14x
12x+2
6x+1
4x+3x
​
By MICHELLE KITAKAWA
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