2.
4×9-(6×0+54:6)+108=
4×9-(0+54:6)+108=
4×9-(0+9)+108=
4×9-9+108=
36-9+108=
27+108=
=135
(15×11-87)+30:3=
(165-87)+30:3=
78+30:3=
78+10=
=88
49:7×13+(645-14×10)=
49:7×13+(645-140)=
49:7×13+505=
7×13+505=
91+505=
=596
(88-35)×8+56:7+12×5=
53×8+56:7+12×5=
424+56:7+12×5=
424+8+12×5=
424+8+60=
432+60=
=492
27+108=135
78+10=88
91+505=597
53×8+8+60=
474+8+60=
482+60=542
sper ca te-am ajutat
