题目内容

0.7×14.5-4.81.2×4.5×3.18.75+1.6×5.2
(16.47-3.5)×0.414.6-5×0.244.76×(3.5+4.2)
4.2×5.3+6.5432.7-6.4×0.83.7×(10-5.2)
(1)0.7×14.5-4.8,
=10.15-4.8,
=5.35;

(2)1.2×4.5×3.1,
=5.4×3.1,
=16.74;

(3)8.75+1.6×5.2,
=8.75+8.32,
=17.07;

(4)(16.47-3.5)×0.4,
=12.97×04,
=5.188;

(5)14.6-5×0.24,
=14.6-1.2,
=13.4;

(6)4.76×(3.5+4.2),
=4.76×7.7,
=36.652;

(7)4.2×5.3+6.54,
=22.26+6.54,
=28.8;

(8)32.7-6.4×0.8,
=32.7-5.12,
=27.58;

(9)3.7×(10-5.2),
=3.7×4.8,
=17.76.
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