1/5乘以3.7+6.3乘以1/5+4.4,怎么简算

问题描述:

1/5乘以3.7+6.3乘以1/5+4.4,怎么简算

1/5乘以3.7+6.3乘以1/5+4.4,
=1/5×(3.7+6.3)+4.4
=2+4.4
=6.4