Μαθηματικά Β΄ δημοτικού

https://www.metaixmio.gr/el/products/mathhmatika-b-dhmotikou#:~:text=%CE%A4%CE%BF%20%CE%B5%CE%BA%CF%80%CE%B1%CE%B9%CE%B4%CE%B5%CF%85%CF%84%CE%B9%CE%BA%CF%8C%20%CE%B1%CF%85%CF%84%CF%8C,%CE%BD%CE%B1%20%CF%84%CE%B1%20%CE%B1%CE%B3%CE%B1%CF%80%CE%AE%CF%83%CE%BF%CF%85%CE%BD.