👤

Scrie numerele 620,530,840,960 ca suma de produse.

Răspuns :

31 x 10 + 31 x 10

5 x 100 + 3 x 10

42x 10 + 42 x 10

48x 10 + 48 x 10

620: 30= 155•2+155•2
530=53•5+53•5
840=210•2+140•3
960=240•2+120•4