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Expressões Algébricas (7ºano)

Authored by Maiza Silveira

Mathematics

7th Grade

Used 185+ times

Expressões Algébricas (7ºano)
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12 questions

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1.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

Qual é o coeficiente do termo 13a na expressão 13a + 6b?

13

6

a

b

c

2.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

Media Image

Qual perímetro da figura ao lado?

9x

6x

12x

18x

20x

3.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

Qual a expressão algébrica que representa a seguinte afirmação : "O triplo de um número x adicionado à metade de x".

3x

3x + x/2

10x + 4

x/5 - 3

x + x/2

4.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

Media Image

15x + 5y + 3z

5x + 1,5y + z

5x + y + 3z

5x + 1,5y + 3z

x + 1,5y + 3z

5.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

Media Image

R$ 121,50

R$ 221,50

R$ 121,00

R$ 129,50

R$ 125,50

6.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

Qual o valor numérico da expressão 10ab + 5a² - 3b, para a = 4 e b = -6?

24

18

-142

-34

-34

7.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

Qual a forma reduzida da expressão algébrica a + b + ab + 5b + 3ab + 9a - 5c?

a + 6b - 5c + 4ab

10a + b - 5c + 4ab

10a + 6b - 5c + 4

10a + 6b - 5c + 4ab

a + b - c + ab

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