0.375乘101减37.5 简算

0.375*101-37.5
＝0.375*100+0.375-37.5
＝37.5-37.5+0.375
＝0.375

0.375*(100+1)-37.5
答案是0.375

0.375*101-37.5
=0.375*(100+1)-37.5
=37.5+0.375-37.5
=37.5-37.5+0.375
=0.375