小明从家步行去学校，如果每分钟50米，24分钟可以到达，如果每分钟行60米，可以几分钟到达？（用比例解）
直接写得数．= = = == = = =
12+9.9= 1÷0.25= ÷=×50%= ﹣= （0.75﹣）×96=
直接写得数．+= 6÷= ÷4= 2×=÷5= 24÷= ×= ÷=×24= ×= ÷= ×=
﹣= ÷12= 15×=36÷= += ×12=÷= ×=
直接写出得数．﹣= 4.5×102= ×6= 270÷18= 5﹣0.25+0.75=2÷= 10×10%= 7×÷7×= 1÷×= 341﹣103=
= 
= 
= 
=
= 
= 
= 
=
÷
=
×50%= 
﹣
= （0.75﹣
）×96=
+
= 6÷
= 
÷4= 2×
÷5= 24÷
= 
×
= 
÷
×
= 
÷
= 
×
=
﹣
= 
÷12= 15×
=
= 
+
= 
÷
= 
×
=
﹣
= 4.5×102= 
×6= 270÷18= 5﹣0.25+0.75=
= 10×10%= 7×
÷7×
= 1÷
×
= 341﹣103=
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