画圈的两题
2014-12-02
展开全部
7/10=70%,¾=75%,5/8=62.5,4/7=57.1,9/11=81.8%。
3÷8 3.2÷8
=0.375 =0.4
=37.5% =40%
20÷16 7÷9
=1.25 =0.778
=125% =77.8%
3÷8 3.2÷8
=0.375 =0.4
=37.5% =40%
20÷16 7÷9
=1.25 =0.778
=125% =77.8%
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