Page 56 - 九数(北师上)全册
P. 56

! ! !

                                          % !  STUV"                        )*+,$-.( !"%&




                                                                                  '
   % 4LS¿MN) 4) ! 8×Ø ! 89ÄÑ)*i­MIÑ)*$ & ' gÈ& !Þ5 ! $
                                                                       !
                                                               9
   2345# ! !í~**0MI8·                                                                          " B ! #
                                                                                                !
   !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!B@ ’Ã8o+*
   ?@ ’Ã8lL*              A@ ’Ã8_*               >@ ’Ã85*
   & MIÑ)*K)8Ji­ ! !Þ× !$
   2345$ ! 9ÄMIÑ)*"çK)S¿^*6: % -$.6: % á◬8MIJ^                                              " !?! #
      $                      *                      (                      ,
   ?@                     A@                     >@                     B@
      *                      $                      ,                      (
                                           3
                                           3
   5678 ! «¬­®:;IJ                         3
                                           3
   + ># , ~% 9Ä_*MIã- û|]h$               3
                                           3 #$ 9ÄÑ)*MI8E3·                                    " B ! #
                                                                                                !
                                           3
                                           3   ?@ KLMN
                                               !!!!!!!!!!!!!!!!!!!!!
                                           3
                                           3   A@ K)MN
   + KL7M, SŠD@#}/âÚ¿-X(3
                                           3
   '?}Z% €@'?WU’$                              >@ KLMN% K)MN
                                           3
   + 3?*@, /! J—c,-!ÞH$ :;<3
                                           3   B@ KLMN% K)ÖJ&
   =! ;*+, )+,- u*+,)?+?,?-?Ï
                                           3
   -c,$< ( )" ( )? % +" ( +? % ," $$ ~% ý!68lÄ_*“% MI8·                                       " > ! #
                                           3
                                                                                                !
                         (
                                     (
                                           3
                      )+ .+       )?+? $+
   ( ,? % -"( -?$;       "    "$ %     "   3
         (
                      +, $.       +?,? !+  3
         )+ )?+?                           3
   "$ % <    "     % <J—c,-!ÞH$ !          3
         +, +?,?
                                           3
   567A ! «¬­®:;<=
                                           3
   + >$ , ~% ‰Š()* )+,- MIn()3                ?@ §) ¨HÐ                    A@ §H¨
                                           3
   *)?+?,?-? % Ê () 8L•% 8S¿
                                           3   >@ §HÐ                       B@ ¨HÐ
   ^                                 "    # 3
                                      !!
                                           3                                                         #
                                                                                                !
           )                                 %$ " †‡­ˆ# !풏õ89Ä~*·MI8·                        " B !
   ?@!+&2 %                                3
           .                               3   ?@ 9ÄNklL*                   A@ 9Ä5*
           )                               3
   A@!$+2 %                                3
           .
                                           3   >@ 9Ä_*                      B@ 9Äo`)*
           .                               3
   >@!+&2 %
           )                               3
                                           3
           .
   B@!$+2 %                                3 ($ ~’ô89Ä()*MI% Ê                                " !?! #
                                             !!!!!!!!!!!!!!!!!!!!!(" 8L·
           )                               3
   + KL7M, ›œ}/D@#$Šn‘% %3
                                           3
   X}/D@#$'?(}Z% '?@WU’$                   3
   + 3?*@, ?                               3
                                           3
                                           3
     111111111111111111111111111111111111111111112  2 3  ?@)&2  A@(+2     >@&.2          B@!$+2
     #$ ‰Œ%XD@#a}/% deåà%X&               3 )$ ‰Š9Ä`)*MI% '“"Ä`)*8Ið)^$+ % I_)
       !" ! # '?(}Z$" $ # '?@WU’$         3
                                           3
     $$ =?™}/D@#RSQ% ‹*Û'?(>                   ^- % Z"Ä`)*8I_)^* % ʗ8Ið)^                     " !?! #
                                           3
       '?@$                                3
                                         2 3 ?@!.
                                                           A@!$           >@,            B@(
     2
   51   52   53   54   55   56   57   58   59   60   61