Question

计算379×0.00038+159×0.00621+3.79×0.121=

 

．

Answer 1

考点：运算定律与简便运算

专题：运算定律及简算

分析：运用乘法的分配律进行简算即可．

解答： 解：379×0.00038+159×0.00621+3.79×0.121
=379×0.00038+379×0.00121+159×0.00621
=379×（0.00038+0.00121）+159×0.00621
=379×0.00159+159×0.00621
=0.00379×159+159×0.00621
=（0.00379+0.00621）×159
=0.01×159
=1.59；
故答案为：1.59．

点评：此题考查了灵活运用乘法的分配律进行简算．