Răspuns :
4+1=5parti----alcatuiesc 25pah
25:5=5panare--de ovas
5x4=20pahare--de griu
verif:20:5=4ori (sau) 20+5=25pah
25:5=5panare--de ovas
5x4=20pahare--de griu
verif:20:5=4ori (sau) 20+5=25pah
ovaz |---| \⇒in total 25 pahare
grau |---|---|---|---|---| /
25/5=5pahare de ovaz
5*4=20 pahare cu grau
grau |---|---|---|---|---| /
25/5=5pahare de ovaz
5*4=20 pahare cu grau