淘气和笑笑画同一根电线杆,淘气用1:2500画了16cm,则笑笑用1:100000画了_cm.
问题描述:
淘气和笑笑画同一根电线杆,淘气用1:2500画了16cm,则笑笑用1:100000画了______cm.
答
16÷
×1 2500
1 100000
=40000×
1 100000
=0.4(厘米);
答:笑笑用1:100000画了0.4cm.
故答案为:0.4.