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1、精选优质文档-倾情为你奉上158+262+138375+219+381+22550012471021232(181+2564)+2719378+44+114+242+222276+228+353+219(375+1034)+(966+125)(2130+783+270)+101799+999+9999+999997755(2187+755)2214+638+28630657381065899+3442357183317357236510862144972992370+19953999+498188339812257524138254(13125)(38)(12+24+80)5070425253
2、212532(25+125)881251027658981781011788436+64847599+2758310283298199123181233+8512350(344)325(24+16)17899+1787942+79+795773002548100475168001203010021003200040049700700124824315015480025215001252356(1356721)1235(17801665)7527+192 531870+133104(2565+2528)(1)(7861)39 (2)7008218(3)348163242410537(4)1254
3、74725 (5)201316(6)37420522695 (7)3000999(8)997721 (9)8747087053(10)(555555555)125(11)125(840)25 (12)994999(13)264974264(14)454999999545(15)9999366666332(16)124386512476110767(17)624445518(18)3400623438203814(19)1992(20(246100)-(13599)1 2 1 10 2 3 ()4 ()5 6 1 25 2 32 3 1 2012 3 994 5 6 99 7 8 23 1 2 3 4 4 2 5 8 a b c = a (b c)6 7 8. ( 8)9 ( )10 930 511 12 ( ) 13 ( ) 专心-专注-专业