Ответ:\(400-208=192\).\(504-397=107\).\(109\cdot6=654\).\(205\cdot4=820\).\(168\cdot4=672\).\(168:4=42\).\(648:6=108\).\(927:9=103\).Ответ: 192; 107; 654; 820; 672; 42; 108; 103.