(1)(16+72)÷4 =88÷4 =22; (2)(36+45)×5 =81×5 =405; (3)(42-18)×6 =24×6 =144; (4)(100-36)÷16 =64÷16 =4; (5)16×(32÷4) =16×8 =128; (6)128÷(8×4) =128÷32 =4; (7)19×(41-27) =19×14 =266; (8)96÷(18+14) =96÷32 =3; (9)128-(160-116) =128-44 =84; (10)36÷(96÷16) =36÷6 =6; (11)412-(136+116) =412-252 =160; (12)112÷(7×8) =112÷56 =2. |