Sprawdzian wyrażenia algebraiczne i równania klasa 8

Sprawdzian wyrażenia algebraiczne i równania klasa 8

7th - 8th Grade

23 Qs

quiz-placeholder

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Sprawdzian wyrażenia algebraiczne i równania klasa 8

Sprawdzian wyrażenia algebraiczne i równania klasa 8

Assessment

Quiz

Mathematics

7th - 8th Grade

Practice Problem

Medium

Created by

Katarzyna Świątkowska

Used 333+ times

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23 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Która liczba jest rozwiązaniem równania

4 ∙ x – 6 = 66

18

-18

15

-15

2.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Ojciec jest o 20 lat starszy od syna. Razem mają 30 lat. Ile lat ma ojciec, a ile syn?

ojciec 24 lata, syn 5 lat

nie da się obliczyć, zbyt mało danych

ojciec 25 lat, syn 5 lata

ojciec 26 lat, syn 4 lata

3.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Zapisz w jak najprostszej postaci: -(3x+4)-7x-1

10x + 5

-4x +4

4x - 3

-10x - 5

4.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Suma dwóch liczb wynosi 23. Jedna z liczb jest o 7 mniejsza od drugiej. Znajdź te liczby.

te liczby to: 18 i 5

te liczby to: 15 i 8

te liczby to: 13 i 10

nie da się obliczyć

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Po uproszczeniu wyrażenia 4(a + 5b) − 3(3b + 2a) otrzymamy:

2a + 11b

-2a + 11b

21ab

2a + 17b

6.

FILL IN THE BLANK QUESTION

1 min • 1 pt

Zapisz wyrażenie t(4a − 3s) + s(3t + a) w najprostszej postaci.

7.

MULTIPLE SELECT QUESTION

30 sec • 1 pt

Rozwiązaniem równania jest liczba:

 4x=29\frac{4}{x}=\frac{2}{9}  

8

 29\frac{2}{9}  

9

18

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