7º Ano - Expressão algébrica: calcular o valor numérico Quiz

10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Calcule o valor numérico da expressão $2x + 3$ para $x = 4$ .

10

11

12

14

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Se $y = 5$ , qual é o valor de $3y - 7$ ?

8

10

15

7

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Calcule o valor de $x^2 + 2x$ para $x = 3$ .

9

12

15

21

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Qual é o valor da expressão $5a - 2b$ quando $a = 2$ e $b = 3$ ?

4

7

1

10

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Se $x = 6$ , qual é o valor de $\frac{x}{2} + 4$ ?

7

6

8

10

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Calcule o valor de $2m^2 - m$ para $m = 4$ .

24

28

32

12

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Se $x = 2$ e $y = 3$ , qual é o valor de $4x + y^2$ ?

10

13

16

18

8.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Calcule o valor de $7 - 2x$ para $x = 5$ .

-3

2

-7

5

9.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Se $a = 1$ e $b = 2$ , qual é o valor de $3a^2 + 2ab$ ?

7

5

4

8

10.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Calcule o valor de $\sqrt{x + 5}$ para $x = 4$ .

2

3

4

9

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7º Ano - Expressão algébrica: calcular o valor numérico

Calcule o valor numérico da expressão 2x+32x + 32x+3 para x=4x = 4x=4 .

Se y=5y = 5y=5 , qual é o valor de 3y−73y - 73y−7 ?

Calcule o valor de x2+2xx^2 + 2xx2+2x para x=3x = 3x=3 .

Qual é o valor da expressão 5a−2b5a - 2b5a−2b quando a=2a = 2a=2 e b=3b = 3b=3 ?

Se x=6x = 6x=6 , qual é o valor de x2+4\frac{x}{2} + 42x​+4 ?

Calcule o valor de 2m2−m2m^2 - m2m2−m para m=4m = 4m=4 .

Se x=2x = 2x=2 e y=3y = 3y=3 , qual é o valor de 4x+y24x + y^24x+y2 ?

Calcule o valor de 7−2x7 - 2x7−2x para x=5x = 5x=5 .

Se a=1a = 1a=1 e b=2b = 2b=2 , qual é o valor de 3a2+2ab3a^2 + 2ab3a2+2ab ?

Calcule o valor de x+5\sqrt{x + 5}x+5​ para x=4x = 4x=4 .

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Calcule o valor numérico da expressão $2x + 3$ para $x = 4$ .

Se $y = 5$ , qual é o valor de $3y - 7$ ?

Calcule o valor de $x^2 + 2x$ para $x = 3$ .

Qual é o valor da expressão $5a - 2b$ quando $a = 2$ e $b = 3$ ?

Se $x = 6$ , qual é o valor de $\frac{x}{2} + 4$ ?

Calcule o valor de $2m^2 - m$ para $m = 4$ .

Se $x = 2$ e $y = 3$ , qual é o valor de $4x + y^2$ ?

Calcule o valor de $7 - 2x$ para $x = 5$ .

Se $a = 1$ e $b = 2$ , qual é o valor de $3a^2 + 2ab$ ?

Calcule o valor de $\sqrt{x + 5}$ para $x = 4$ .