下面是4名体院学生50米自由泳成绩统计表．把前三名的名字写在领奖台上． 姓名 许薇 刘娟 李菲 王小芳成绩/秒 55.83 54.49 48.50 55.67•
×= 0×=÷====
直接写出得数×3=×16=×=（+）×4=×+×=+=÷3= 4÷=
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×1= 52﹣42= 0.75﹣0.5=×=÷= 125×0.08= 0.5+0.02=÷=÷= 0.15×6= 12÷0.3= 0÷=
直接写得数．×16= 12÷= 24×=×÷= 1÷=÷15=÷=×÷×=
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÷
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×3=
×16=
×
=（
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）×4=
×
+
×
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+
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÷3= 4÷
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×1= 52﹣42= 0.75﹣0.5=
=
÷
= 125×0.08=
÷
= 0.15×6= 12÷0.3= 0÷
=
×16= 12÷
= 24×
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×
÷
=
÷15=
÷
=
×
÷
×
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