植树节学校组织同学们去植树，一班同学种了18棵，二班同学种了12棵，二班再种几棵就与一班同样多了？;^5k0S3z(I4P4{-@1\;_0X
算式：提示:j*K/J2o)H;^5k0S3z(I4P4{-@1\;_0X
答：二班再种0g+|-E4m9A(l/\棵就与一班同样多了。;^5k0S3z(I4P4{-@1\;_0X