3.8*41-0.38咋简算

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3.8*41-0.38咋简算3.8*41-0.38咋简算3.8*41-0.38咋简算3.8*41-0.38=3.8*4.1-3.8*0.1=3.8*(4.1-0.1)=3.8*4=(4-0.2)*4=

3.8*41-0.38咋简算
3.8*41-0.38咋简算

3.8*41-0.38咋简算
3.8*41-0.38
=3.8*4.1-3.8*0.1
=3.8*(4.1-0.1)
=3.8*4
=(4-0.2)*4
=16-0.8
=15.2

3.8*41-0.38
=3.8*(40+1)-0.38
=152+3.8-0.38
=155+0.8-0.38
=155+0.42
=155.42