(125-40)×8的简便算式.

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(125-40)×8的简便算式.
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(125-40)×8的简便算式.
(125-40)×8的简便算式.

(125-40)×8的简便算式.
=125×8-40×8
=1000-320
=680

(125-40)×8
=125×8-40×8
=1000-320
=680

(125-40)×8
=125×8-40×8
=1000-320
=680