Răspuns:
a)75*42+75*120=3150+9000=12150
75(42+120)=75*162=12150
b)81*(148-59)=81*89=7209
81*148-81*59=11988-4779=7209
c)114*(123+35)=114*158=18012
114*123+114*35=14022+3990=18012
d)342*6-4*342=2052-1368=684
342*(6-4)=342*2=684
