（张家港市）某班学生上体育课，一位男生走出队伍统计人数，结果发现，队伍里的男生人数与女生人数的比是3：5，换成一位女生走出队伍统计人数，结果发现，队伍里女生人数是男生的．这个班男、女学生各多少人？
口算．== 5﹣== 0×1= 1÷===
直接写得数．========
直接写得数+=÷7=×=÷=×8= 9÷= 15×=﹣=÷=×=×=÷=
直接写出得数．+=×=÷6=×8=+= 2﹣= 0+=÷= 1÷=﹣=
直接写得数．+= 1﹣= 1÷=﹣= 9.6÷1.6= 0÷= 51×199≈（+）×12=
．这个班男、女学生各多少人？．这个班男、女学生各多少人？
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= 5﹣
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= 1÷
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+
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÷7=
×
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÷
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×8= 9÷
= 15×
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﹣
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÷
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×
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÷
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+
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×
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÷6=
×8=
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﹣
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= 1﹣
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= 51×199≈（
+
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