脱式计算。-|||-① times (632-248)div 8] -|||-② div [ 212-(246-41)] -|||-⑦ times [ (478+298)div 4] -|||-③ [ 537-(728-699)] times 16-|||-⑧ times [ 234div (2times 3)] -|||-④ [ (81-56)times 19] div 5-|||-⑨ times [ (627-270)div 7] -|||-⑤ [ 200-(68+44)] div 8-|||-⑩ times [ (714-12)div 9] -|||-⑥ div [ (24+21)div 9]