“母亲节”前夕，某商店根据市场调査，用3000元购进第一批盒装花，上市后很快售完，接着又用5000元购进第二批这种盒装花．已知第二批所购花的盒数是第一批所购花盒数的2倍，且每盒花的进价比第一批的进价少5元．求第一批盒装花每盒的进价是多少元？
直接写出得数．﹣=×= 12×= 1÷=== 1.6×4×0.25= 0÷=
直接写得数．+=÷6=×= 2﹣+=×16= 6﹣=÷=5×÷5×=
直接写得数．===== 75%÷25%===
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直接写出得数．+0.2=+﹣0.2= 5÷=×1.5+3= 3.6×=×1.5=﹣= 1﹣137.5%=
﹣
=
×
= 12×
= 1÷
=
=
= 1.6×4×0.25= 0÷
=
+
=
÷6=
×
= 2﹣
+
=
×16= 6﹣
=
÷
=5×
÷5×
=
=
=
=
= 75%÷25%=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
+0.2=
+
﹣0.2= 5÷
=
×1.5+3=
=
×1.5=
﹣
= 1﹣137.5%=
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