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5×32×1.25= 13.5-2.8-7.2=
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(1)5×32×1.25,
=5×4×8×1.25,
=5×4×(8×1.25),
=20×10,
=200;
(2)13.5-2.8-7.2,
=13.5-(2.8+7.2),
=13.5-10,
=3.5.
=5×4×8×1.25,
=5×4×(8×1.25),
=20×10,
=200;
(2)13.5-2.8-7.2,
=13.5-(2.8+7.2),
=13.5-10,
=3.5.
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