434:7*3=62*3=186
550:5*9=110*9=990
(190+450):80=640:80=8
(532-142):3=390:3=130
(295+254):9*5=549:49*5=61*5=305
(800-68):6*2=732:6*2=122*2=244
434:7*3=62*3=186
550:5*9=110*9=990
(190+450):80=640:80=8
(532-142):3=390:3=130
(295+254):9*5=549:49*5=61*5=305
(800-68):6*2=732:6*2=122*2=244