0.375乘101减37.5 简算

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0.375乘101减37.5简算0.375乘101减37.5简算0.375乘101减37.5简算0.375*(100+1)-37.5答案是0.3750.375*(100+1)-37.5=0.375*1

0.375乘101减37.5 简算
0.375乘101减37.5 简算

0.375乘101减37.5 简算
0.375*(100+1)-37.5
答案是0.375

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

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

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

汗~~~
的确够简单
把101拆了100+1
0.375*100-37.5=0
剩下0.375

原式=0.375(100-100)+0.375=0.375

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