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能简算的要简算.125.7×18.5-25.7×18.5 58.8÷(0.6×0.7)÷0.0227÷0.25  ...

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解决时间 2021-01-06 08:14
  • 提问者网友:风月客
  • 2021-01-06 00:18
能简算的要简算.125.7×18.5-25.7×18.5 58.8÷(0.6×0.7)÷0.0227÷0.25  ...
最佳答案
  • 五星知识达人网友:慢性怪人
  • 2021-01-06 01:54
①125.7×18.5-25.7×18.5,
=(125.7-25.7)×18.5,
=100×18.5,
=1850;

②58.8÷(0.6×0.7)÷0.02,
=58.8÷0.42÷0.02,
=140÷0.02
=7000;

③27÷0.25,
=(27×4)÷(0.25×4),
=108÷1,
=108;

④0.357÷(0.75×0.4),
=0.357÷0.3,
=1.19;

⑤10.1×87,
=(10+0.1)×87,
=10×87+0.1×87,
=870+8.7,
=878.7;

⑥0.45×78.2+20.8×0.45+0.45,
=(78.2+20.8+1)×0.45,
=100×0.45,
=45.
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