ex. 2,3 Rapid vă rog!

2875+1397=4272
6103-974=5129
285x4=1140
314X16=5024
96:8=12
72:4=18
1000-(7x12-98:2):5+209x36=
1000-(84-49):5+7524=
1000-35:5+7524=
1000-7+7524=
8517