一个商人把一件衣服标价650元，经打假人员鉴别降至78元出售，但仍可以赚20%，如按原价出售，则这件衣服可获暴利多少元？
直接写得数 4÷= 0×=÷=×1.4=×= 0÷=×10= 30×0.05=
直接写出得数．========
口算． 4.2÷=×3=÷5=（+）×72=×12=×1.8=÷=
========
直接写出得出． 20×=÷=×=+=÷6=×12=+= 6÷=﹣=×=×= 0÷=
= 0×
=
÷
×1.4=
×
=
×10= 30×0.05=
=
=
=
=
=
=
=
=
=
×3=
÷5=（
+
）×72=
×12=
÷
=
=
=
=
=
=
=
=
=
÷
=
×
=
+
=
÷6=
+
= 6÷
=
﹣
=
×
=
×
= 0÷
=
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