问题
解答题
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答案
(1)1.25×3.2×0.8,
=1.25×0.8×3.2,
=1×3.2,
=3.2;
(2)14.5×102,
=14.5×(100+2),
=14.5×100+14.5×2,
=1450+29,
=1479;
(3)4.7×4.7+4.7+4.7×4.3,
=4.7×(4.7+1+4.3),
=4.7×10,
=47;
(4)9.6÷0.4×0.25,
=24×0.25,
=6×(4×0.25),
=6×1,
=6;
(5)8.68-8.68÷0.56×0.5,
=8.68-15.5×0.5,
=8.68-7.75,
=0.93;
(6)29.7÷(5.85÷0.65),
=29.7÷9,
=3.3.