Ответ:\(564-331=233\);\(567-121=446\);\(577-20=557\);\(356-66=290\);\(220+21=241\);\(800-350=450\);\(63\times3-220=189-220=-31\);\(345-200=145\);\(245+17=262\);\(316+71=387\);\(89+71=160\).