4.1 折一折，做一做-二年级数学上册北师大版教材全解【一鸣学霸】

&#""" !0#$%12345 !! !"#�r�{¯�@�s5=�°± # ²³ # ´¨}EÊ ! åæ@�^� " Ñ0¯�@� ! 345D�s5/Mááµ(�{¯�H� " Ñ0¯�@�¨Ú ª/v�¶?GH ! s5=>RS/· " !"#/S}¸�����01 ! Ø� �HS|�� ! ÉH%��/012ÊÀSDE-. ! tu��DE/}~ ! X ¹%�{/012�t+ºH� " ! Y'Y $ Z'Z !"#$% ! "$ Ñ0»í # ¼í¦+º@� ! s5=�¨}Úª/½� " %$ HYZ´¨}Úª/½�H» # ¼�¨}Úª " &'#() ! %+,¯�2s5=�Ü6MÚª/°±(²³EÊ " *+,-#./0 ! %��(bc¦@�2 ! �ts5/Mááµ(�{¯�H� " !"#$:"defghijk !"#$ !"# °±(²²%{|¾ ¼£4¥¿À/Ú= " !! !一鸣学霸· /012 ! 34567 " 89 # &$""" $"% ¡H¼� / & $%% .Á:ª¬ �/)¸Ú= " $&% �4� ! ¯�2¾�;Âú-. & %&'" $% &'() .§/¾Õ$.Á: ! ü� Ú2°±(²²%{|¾ ¼�Ó/¿ÀÚ= " ঠ¾ÙÒ´¨}Úª/½�31ü ! Oxáâ Ú ! à¦7DEØ¥Ú=/"�($� $ÄÅ4�/ ! �`�2ᨻ ! "$·�H�ÄÅ$r ! à¦Â¾ÆZظ½�Sü " *% +,-. ÙÒ´¨}ÚªÇ[2Ȩ»ð ! »É·Ê/|&H�ÄÅ$r31ü " 5% %&'( "$ "4n��ª/íX¨» " %$ %¨»/í ú67Ú=/4Ë " &$ õöÚ=/�̼ËÓ " ($ ñ¼ËÓ/Ú=�� " �6¯�5Í�Ú ' ()*+ ^Ç1O�� ) _`aZb×>� $ c±,dOZe $ 3×ONO $ KfOgùY3 (,h` & ! &X() !!! &%""" ,-./ !!"$ ­\8/ÒÑGØ1 " 2ÙÚÛÜݽc " a/ÒÑLxGÞÒÑ # %$ ßGÞÒÑ*#$ ! &8àÑá³â*ãGØ " 7ã)ä_ÒÑ*8å " CßæçÂ4èéêßë " ìëØãL5V8/GÞÒÑ # 7ßGÞÒÑq " Ø ãíî�GH " èÒ�ïð "