Răspuns :
8 instalatii=328 beculete
o instalatie= 328:8=41 beculete
4 instalatii=41×4=164 beculete
o instalatie= 328:8=41 beculete
4 instalatii=41×4=164 beculete
cate beculete are o instalatie? 328:8=41....
cate beculete are 4 instalatii?
41×4=164
cate beculete are 4 instalatii?
41×4=164