计算,能简算的用简便方法计算.125×8.08 ...
计算,能简算的用简便方法计算.125×8.0886×15-38079×25+20×79+79×5537×(45-23)713×85÷1439[35-(34-25)]÷4....
计算,能简算的用简便方法计算.125×8.08 86×15-380 79×25+20×79+79×5537×(45-23) 713×85÷1439[35-(34-25)]÷4.
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125×8.08,
=125×8+125×0.08,
=1000+10,
=1010,
86×15-380,
=1290-380,
=910,
79×25+20×79+79×55,
=79×(25+20+55),
=79×100,
=7900,
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=125×8+125×0.08,
=1000+10,
=1010,
86×15-380,
=1290-380,
=910,
79×25+20×79+79×55,
=79×(25+20+55),
=79×100,
=7900,
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