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计算下面各题.(能简算的要简算)43×512+53×512(532×1516)÷151638
问题详情
参考答案
(1)43×512+53×512,
=(43+53)×512,
=3×512,
=54;
(2)(532×1516)÷1516,
=(532×1516)×1615,
=532×(1516×1615),
=532×1,
=532;
(3)38×34+58×75%,
=38×0.75+58×0.75,
=(38+58)×0.75,
=1×0.75,
=0.75;
(4)(1+25%)÷(1-25%),
=1.25÷0.75,
=53;
(5)5×43+13,
=203+13,
=7;
(6)413÷65%×413×65%,
=(413×413)×(65%÷65%),
=1699×1,
=1699.
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