求38又3/4-15.38+61.25-4.62的简便运算

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求38又3/4-15.38+61.25-4.62的简便运算
求38又3/4-15.38+61.25-4.62的简便运算

求38又3/4-15.38+61.25-4.62的简便运算
38又3/4-15.38+61.25-4.62
=38.75+61.25-(15.38+4.62)
=100-20
=80

38又3/4-15.38+61.25-4.62=38又3/4+61.25-(4.62+15.38)=38又3/4+61.25-20=18又3/4+61.25=
18.75+61.25=-43.5

(3875-1538+6125-462)/100
【3875+6125-(1538+462)】/100
=80