Question

計(jì)算：4.82×0.59+0.41×1.59-0.323×5.9=

1.59

．

Answer 1

分析：將4.82×0.59+0.41×1.59-0.323×5.9變形為4.82×0.59-3.23×0.59+0.41×1.59，再兩次運(yùn)用乘法分配律簡便計(jì)算．

解答：解：4.82×0.59+0.41×1.59-0.323×5.9，
=4.82×0.59-3.23×0.59+0.41×1.59，
=（4.82-3.23）×0.59+0.41×1.59，
=1.59×0.59+0.41×1.59，
=1.59×（0.59+0.41），
=1.59×1，
=1.59．
故答案為：1.59．

點(diǎn)評：考查了四則混合運(yùn)算中的巧算，注意靈活運(yùn)用積不變規(guī)律，運(yùn)算律簡便計(jì)算．