Question

计算：4.82×0.59+0.41×1.59-0.323×5.9=

1.59

．

Answer 1

分析：将4.82×0.59+0.41×1.59-0.323×5.9变形为4.82×0.59-3.23×0.59+0.41×1.59，再两次运用乘法分配律简便计算．

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．
故答案为：1.59．

点评：考查了四则混合运算中的巧算，注意灵活运用积不变规律，运算律简便计算．