Wyrażenia algebraiczne

Wyrażenia algebraiczne

7th Grade

14 Qs

quiz-placeholder

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Wyrażenia algebraiczne

Wyrażenia algebraiczne

Assessment

Quiz

Mathematics

7th Grade

Hard

Created by

Elżbieta Ryś

Used 31+ times

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14 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

 Wyrażenie

 63x156\cdot3x-15  to:

suma

różnica 

iloczyn

iloraz

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Iloraz liczby x przez liczbę 5y to:

x5yx\cdot5y

x+5yx+5y

x5y\frac{x}{5y}

5yx\frac{5y}{x}

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Wartość liczbowa wyrażenia

 2(x  3y)-2\left(x\ -\ 3y\right)  dla x= 14 i y =2 jest równa:

-16

36

16

-36

4.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Jeden bok prostokąta ma 2a cm, a drugi 15 cm. Które wyrażenie opisuje obwód tego prostokąta?

30a

2a +15

4a+30

2a +30

5.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Jeden bok prostokąta ma 6 dm, a drugi (m+2) dm. Które wyrażenie opisuje pole tego prostokąta:

6(m+2)

6 +m

6m +2

6m

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Wyrazy podobne to:

5xy i 5xy25xy\ \ i\ \ 5xy^2

x i x2x\ \ i\ \ x^2

5ab2 i 8ba5ab^2\ \ \ i\ \ 8ba

5ab2 i 8b2a5ab^2\ \ i\ \ 8b^2a

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Po zapisaniu wyrażenia

 2x+2y23y2+5x2x+2y^2-3y^2+5x  w najprostszej postaci otrzymamy:

 7x2+27x^2+2  

 x2+5yx^2+5y  

 7x+2y27x+2y^2  

 7xy27x-y^2  

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