Răspuns :
I. a) 45+55=100- piese in total in cutie
b) 45*25 = 2500- piese in toate cutiile
II. a) 25*(45+55) = 25*100=2500 - piese in toate cutiile
b) 45*25 = 2500- piese in toate cutiile
II. a) 25*(45+55) = 25*100=2500 - piese in toate cutiile