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| (1)412÷(607-36×14), =412÷(607-504), =412÷103, =4; (2)72×36+18×36, =(72+18)×36, =90×36, =3240; (3)80×[(325+7)-304], =80×[332-304], =80×28, =2240; (4)250×8-10000÷8, =2000-1250, =750; (5)125×6×8, =125×8×6, =1000×6, =6000; (6)444×25, =111×(4×25), =111×100, =11100; (7)
=1-
=
(8)
=1-
=
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