题目内容

[297-(62+85)]×14
672÷[(26-14)×8]
(725-235)÷14×23.
(1)[297-(62+85)]×14
=[297-147]×14,
=150×14,
=2100;

(2)672÷[(26-14)×8]
=672÷[12×8],
=672÷96,
=7;

(3)(725-235)÷14×23
=490÷14×23,
=35×33,
=1155.
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