问题
解答题
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答案
(1)[0.5+(2-0.75)]×1.6,
=[0.5+1.25]×1.6,
=1.75×1.6,
=2.8;
(2)10.73-4.76-5.24,
=10.73-(4.76+5.24),
=10.73-10,
=0.73;
(3)17.4×2.43-1.43×7.4,
=42.282-10.582,
=31.7;
(4)2.2+(4.72-2.8)÷0.4,
=2.2+1.92÷0.4,
=2.2+4.8,
=7.