Dodawanie i odejmowanie sum algebraicznych - klasa 7

Dodawanie i odejmowanie sum algebraicznych - klasa 7

7th - 8th Grade

9 Qs

quiz-placeholder

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Dodawanie i odejmowanie sum algebraicznych - klasa 7

Dodawanie i odejmowanie sum algebraicznych - klasa 7

Assessment

Quiz

Mathematics

7th - 8th Grade

Hard

Created by

Olga Dąbkowska

Used 13+ times

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9 questions

Show all answers

1.

MULTIPLE SELECT QUESTION

2 mins • 1 pt

 a+(a2)a+\left(a-2\right)  =

 a22a^2-2  

 22a2-2a  

 2a22a-2  

 2a22-a^2  

2.

MULTIPLE SELECT QUESTION

2 mins • 1 pt

 2x(x+3)2x-\left(x+3\right)  =

 x+3x+3  

 x3x-3  

 2x32x-3  

 2x+32x+3  

3.

MULTIPLE SELECT QUESTION

2 mins • 1 pt

 7(x+6)7-\left(-x+6\right)  =

 1+x1+x  

 13x13-x  

 1x1-x  

 13+x13+x  

4.

MULTIPLE SELECT QUESTION

3 mins • 1 pt

 (x+4)+(x4)-\left(x+4\right)+\left(x-4\right)  =

 2x82x-8  

0

 2x2x  

-8

5.

MULTIPLE SELECT QUESTION

3 mins • 1 pt

 1(t+p)(t1)1-\left(t+p\right)-\left(t-1\right)  =

 p2tp-2t  

 2p2-p  

 22tp2-2t-p  

 pp  

6.

MULTIPLE SELECT QUESTION

3 mins • 1 pt

 (y+2)+(2y3)-\left(-y+2\right)+\left(-2y-3\right)  =

 y5-y-5  

 3y-3y  

 y+5-y+5  

 y5y-5  

7.

MULTIPLE SELECT QUESTION

5 mins • 1 pt

 (a+b)(2ab)(a3b)=\left(a+b\right)-\left(2a-b\right)-\left(a-3b\right)=  

 2a3b-2a-3b  

 2a5b2a-5b  

 5b2a5b-2a  

 2a3b2a-3b  

8.

MULTIPLE SELECT QUESTION

3 mins • 1 pt

 (2pr)(2r+p)-\left(2p-r\right)-\left(2r+p\right)  =

 3pr-3p-r  

0

 3rp-3r-p  

 3pr3p-r  

9.

MULTIPLE SELECT QUESTION

3 mins • 1 pt

 (2m+4n)(m0,5n)\left(2m+4n\right)-\left(m-0,5n\right)  

 3m+3,5n3m+3,5n  

 m+4,5nm+4,5n  

 m+3,5nm+3,5n  

 m3,5nm-3,5n