预习分册-2021春二年级下册数学【五星红领巾乐园】同步课堂(北师大版)

书书书 !" ! # $%& ! " # $ !" !" !! #$%& # '()*+, " -./0123*!" # #" 4"567*+,8 $ 9: !$ ;<= " >?@ % % & ;<= " ABCD % # & ;E '" FG-.*!"8 $ FG@H? ('$ >ECH;<= (' I # &" !" #! >?@ % ;<= "!$ ;<=FG@H? ( '" JK ! >?@ % ;<= " LM !$ ;<=FG@H? " N8M !$ OP2H; %" FGQ01RS " TUV (!$ )%( W19 ! QTX1RS # ! ? % ; )# ? !# ; )& ? !$ ; # W1Y ! QZ[RS # Q !$ [ %" [7 * V\ " []H; %" NFG@H? # W1^ ! RS !$ )% +% & &" _ !% `Habc !$" dN8H # ," !" &! Q01eUXf)P*gh " ijkeU5lmnXf*opq ( _ 9_ # %" JK ! ! " % & rgst " u*vw8 !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! ( !" # # '(')(* ! " # $ !" !" !!!& #xyFGzH;{|} ( ~�H# ( #" JK ! |19 ! ��xyz9z # �� ! z] & ;{|} " ~� ! #xy # |1Y ! T01SURS # !& )' +&% ; &**!% # &" �5 $& ; ' Xfz] & ;{|} "$! # ' Xf� ! # "$!' �� % � & m # &" !" #! z9z " �9� " i��]�� ( '" JK ! rg��z9z " ���5*X����� # �X5FG�� ! ��� m���� " ��0m % x &# �V�=�� I� '" ~FGz ! ;{| } # ," !" &! ¡C¢Q #,"&! #xyz9z{|} " £9£ # %" JK ! rgz{|}Fj " Q #, #xyFGz % % & ;{|} " ~� % ! & # " ¤ #, )' +% % &% ; &**% ! &% # &) Q &! #xyFGz % - & ; {|} " ~� % & & # " ¤ &! )' +% - &% ; &**% & &% # &# ! " % & !. # " > & #¥¦9; " FG¥ % ;^§} " ~� ! # # !. ) & + % % ; &** ! % # & rgst " u*vw8 ( ! !" & # '(')+* ! " # $ !" !" !!!% #xyFGzH;¨© " ~�H# ( #" JK ! M !% #xyFGzH;¨© " N8ª !% #OP2H; % # " ~�H# " Q01RS " TUV !% )% + # % ; &** ' % # &# &" )Pz¨©*ghFGQ«P*eUXf # '" !" #! ª9ª " ¬9¬ # ," JK ! rgª(Fj " ­(Xf2 !& ®¯° " ABCD % , & ;x±² " >E C7 % # & ® " ~� % & & ® # ¤ !& ), + # % ® &** & % ® &# ³(Xf2 !& ´µ¶ "% , & ´µ¶·¦9¸¹ " FG·¦ % # & ¸¹ " ~ � % & & ´ # ¤ !& ), + # % ¸ &** & % ´ &# ! " % & rgst " u*vw8 !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! ( !" ' # $,- ! " # $ !" !" !! AB>?@H; " ~�H; ( #" JK ! #$"oFj " ºk"N8� ,, ABC¦ $ » " TUV ,, )$# QeURS ,, )$ ¼ " LMd8H " FGrg£d*|1½M. # - /$ +,%" � ,, � " d - ¾¿ )% /$ +'$" � ,, x " ÀGd8 % % &" �m8 % - &# &" QÁÂ*|1st«9;!" # '" !" #! «PScÃq ( _9_ " ¬9¬ # ," JK ! ­Ä*" " d/0m*bÅ��Æ0m " ¬Çd % � & ] ) ³Ä*" " � m��0m " ¬Çd % x & ] # ÀGÈ"Sc�¾Ã # %" xÉ ! 2�m01£d¼FGÊQb1ËÌM.0m/Í;mab*ÅÎÏ ÐÆ0m