Výrazy M8 Quiz: 10 Practice Questions (Grade 8)

10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

$46\ -3\sqrt{3}\ +\ 5$ je :

číselný výraz

výraz s proměnnou

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

$6\ .\ \left(\pi\ +6\right)$ je:

číselný výraz

výraz s proměnnou

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

$5^2\ +\ x$ je:

číselný výraz

výraz s proměnnou

4.

FILL IN THE BLANKS QUESTION

1 min • 1 pt

Vypočítej hodnotu výrazu:
$6^2\ +2\ .\ \left(-3\right)$

(a)

5.

FILL IN THE BLANKS QUESTION

1 min • 1 pt

Vypočítej hodnotu výrazu:
$\left(1\ +\ 2\right)\ .\ 3\ +\ 9\ :\ 3$

(a)

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Výraz:
$3^2\ +\ 12\ :\ 2$ se rovná hodnotě

12

10,5

15

9

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Výraz
$\sqrt{49\ }\ -3\ .\ \left(-5\right)$ je roven hodnotě

-8

22

-20

6

8.

FILL IN THE BLANKS QUESTION

1 min • 1 pt

Urči hodnotu výrazu
$\sqrt{x\ +\ 34}$ pro x = - 9

(a)

9.

FILL IN THE BLANKS QUESTION

1 min • 1 pt

Urči hodnotu výrazu
$\left(3\ .\ x\ -4\right)^2$ pro x = 1

(a)

10.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Hodnota výrazu
$\sqrt{\left(a\ +b\right)^2\ -\ \left(a^2\ +b^2\right)}$ pro a = 4, b = 2 je rovna

6

8

4

5

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Výrazy M8

46 −33 + 546\ -3\sqrt{3}\ +\ 546 −33​ + 5 je :

6 . (π +6)6\ .\ \left(\pi\ +6\right)6 . (π +6) je:

52 + x5^2\ +\ x52 + x je:

Vypočítej hodnotu výrazu: 62 +2 . (−3)6^2\ +2\ .\ \left(-3\right)62 +2 . (−3) (a)

Vypočítej hodnotu výrazu: (1 + 2) . 3 + 9 : 3\left(1\ +\ 2\right)\ .\ 3\ +\ 9\ :\ 3(1 + 2) . 3 + 9 : 3 (a)

Výraz: 32 + 12 : 23^2\ +\ 12\ :\ 232 + 12 : 2 se rovná hodnotě

Výraz 49 −3 . (−5)\sqrt{49\ }\ -3\ .\ \left(-5\right)49 ​ −3 . (−5) je roven hodnotě

Urči hodnotu výrazu x + 34\sqrt{x\ +\ 34}x + 34​ pro x = - 9 (a)

Urči hodnotu výrazu (3 . x −4)2\left(3\ .\ x\ -4\right)^2(3 . x −4)2 pro x = 1 (a)

Hodnota výrazu (a +b)2 − (a2 +b2)\sqrt{\left(a\ +b\right)^2\ -\ \left(a^2\ +b^2\right)}(a +b)2 − (a2 +b2)​ pro a = 4, b = 2 je rovna

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$46\ -3\sqrt{3}\ +\ 5$ je :

$6\ .\ \left(\pi\ +6\right)$ je:

$5^2\ +\ x$ je:

Vypočítej hodnotu výrazu:
$6^2\ +2\ .\ \left(-3\right)$

(a)

Vypočítej hodnotu výrazu:
$\left(1\ +\ 2\right)\ .\ 3\ +\ 9\ :\ 3$

(a)

Výraz:
$3^2\ +\ 12\ :\ 2$ se rovná hodnotě

Výraz
$\sqrt{49\ }\ -3\ .\ \left(-5\right)$ je roven hodnotě

Urči hodnotu výrazu
$\sqrt{x\ +\ 34}$ pro x = - 9

(a)

Urči hodnotu výrazu
$\left(3\ .\ x\ -4\right)^2$ pro x = 1

(a)

Hodnota výrazu
$\sqrt{\left(a\ +b\right)^2\ -\ \left(a^2\ +b^2\right)}$ pro a = 4, b = 2 je rovna