20*3*100=

700*10+1000=

807 - (236+378) =

72:9*100=

26*5*100=

537 + (305-126) =

205:205+99=

30*3*100=

37*4*1000=

849*0+185-100=

732 + (999-809) =

159: (50+3) =

20*3*100=6000; 700*10+1000=8000; 807 - (236+378) = 807-614=193; 72:9*100=800; 26*5*100=130*100=13000; 537 + (305-126) = 752; 205:205+99=100; 30*3*100=9000; 37*4*1000=148*1000=148000; 848*0+185-100=85; 732 + (999-809) = 922; 159: (50+3) = 3