6.b matek

 https://www.liveworksheets.com/w/hu/matematika/863724

https://www.liveworksheets.com/w/hu/math/849145

https://www.liveworksheets.com/w/hu/matematika/837754

https://www.liveworksheets.com/w/hu/matematika/1127463

https://www.liveworksheets.com/w/en/math/389839