abcabc=2007
abcabc=2008
abcabc=2009
式中的字母表示着不同的数字,如148148等,添加上运算符号,使之成为等式.
全解加赏100分.谢谢高手的参与.
參考答案:1、abcabc=2007,28个:
2*892/8*9=2007,2*972+9*7=2007
(3+5*(9+35))*9=2007,3*(683-6-8)=2007
3*(743-74)=2007,53*(7*5+3)-7=2007
((5+39)*5+3)*9=2007,(5*(39+5)+3)*9=2007
((53-9)*5+3)*9=2007,5+7/2*572=2007
63*96/3-9=2007,(683-6-8)*3=2007
7/2*572+5=2007,7*(3*97-3)-9=2007
(743-74)*3=2007,(7+497)*4-9=2007
(7-4)*9*74+9=2007,74*9*(7-4)+9=2007
8*(31*8+3)-1=2007,892/8*9*2=2007
9*2*892/8=2007,9*(3+5*(9+35))=2007
9*((5+39)*5+3)=2007,9*(5*(39+5)+3)=2007
9*((53-9)*5+3)=2007,9*7+2*972=2007
9+(7-4)*9*74=2007,9+74*9*(7-4)=2007
2、abcabc=2008,137个:
0+5*80*5+8=2008,(0+5)*80*5+8=2008
(0+5*80)*5+8=2008,0+8+50*8*5=2008
1*8*(31*8+3)=2008,(2+3+82*3)*8=2008
(2+3*82+3)*8=2008,24+8*248=2008
(2+5+1)*251=2008,2*(5-1)*251=2008
251*(2+5+1)=2008,251*2*(5-1)=2008
(253-2)*(5+3)=2008,(2+5*4*25)*4=2008
(258-2-5)*8=2008,2*5*8*25+8=2008
25*8*2*5+8=2008,2+59*(25+9)=2008
(278-27)*8=2008,(3+1*8*31)*8=2008
(3*1+8*31)*8=2008,(3/1+8*31)*8=2008
(3*(1+83)-1)*8=2008,(31*8+3)*1*8=2008
(31*8+3*1)*8=2008,(31*8+3)/1*8=2008
(31*8+3/1)*8=2008,32*63-2-6=2008
(32*8-3-2)*8=2008,3*(673-6)+7=2008
((4-1)*84-1)*8=2008,4*(2+5*4*25)=2008
(4+2)*8*42-8=2008,42*8*(4+2)-8=2008
4*(51+451)=2008,4*(6+2*4*62)=2008
4*(6+84*6-8)=2008,4*(6*84+6-8)=2008
4*((75-4)*7+5)=2008,(47*6+4)*7+6=2008
4*(79+47*9)=2008,4*(8+7+487)=2008
(5+0)*8*50+8=2008,(5-0)*8*50+8=2008
5*(0+8)*50+8=2008,5*(0+8*50)+8=2008
50*8*5+0+8=2008,50*(8*5+0)+8=2008
50*8*(5+0)+8=2008,50*8*5-0+8=2008
50*(8*5-0)+8=2008,50*8*(5-0)+8=2008
(5-1)*251*2=2008,(51+451)*4=2008
(5+3)*(253-2)=2008,(5+3*(85-3))*8=2008
(5-(3-85)*3)*8=2008,(5+62)*5*6-2=2008
5*(62+5)*6-2=2008,5+67*5*6-7=2008
56*(7*5+6/7)=2008,(5+6+8*5*6)*8=2008
(5+6*8*5+6)*8=2008,(5*6*8+5+6)*8=2008
5*80*5+8+0=2008,5*80*5+8-0=2008
5*(82*5-8)-2=2008,59*(25+9)+2=2008
(6+2*4*62)*4=2008,6*28*6*2-8=2008
(62*8+6)/2*8=2008,6+(47*6+4)*7=2008
64+9*6*4*9=2008,6*5*(2+65)-2=2008
(65+2)*6*5-2=2008,(6+5+8*6*5)*8=2008
(6+5*8*6+5)*8=2008,(6*5*8+6+5)*8=2008
6*(7-2)*67-2=2008,67*5*6-7+5=2008
(6+84*6-8)*4=2008,(6*84+6-8)*4=2008
72*4*7-2*4=2008,7/2*8*72-8=2008
72*8*7/2-8=2008,7+3*(673-6)=2008
((75-4)*7+5)*4=2008,(7*5+6/7)*56=2008
(79+47*9)*4=2008,8+0+5*80*5=2008
8+(0+5)*80*5=2008,8+(0+5*80)*5=2008
8-0+5*80*5=2008,8-(0-5)*80*5=2008
8-(0-5*80)*5=2008,8*(2+3+82*3)=2008
8*(2+3*82+3)=2008,8*248+24=2008
8*(258-2-5)=2008,8+2*5*8*25=2008
8+25*8*2*5=2008,8*(278-27)=2008
8*(3+1*8*31)=2008,8*(3*1+8*31)=2008
8*(3/1+8*31)=2008,8*(3*(1+83)-1)=2008
8*(31*8+3)*1=2008,8*(31*8+3*1)=2008
8*(31*8+3)/1=2008,8*(31*8+3/1)=2008
8*(32*8-3-2)=2008,8*((4-1)*84-1)=2008
8+(5+0)*8*50=2008,8+(5-0)*8*50=2008
8+5*(0+8)*50=2008,8+5*(0+8*50)=2008
8-5*(0-8)*50=2008,8-5*(0-8*50)=2008
8+50*8*5+0=2008,8+50*(8*5+0)=2008
8+50*8*(5+0)=2008,8+50*8*5-0=2008
8+50*(8*5-0)=2008,8+50*8*(5-0)=2008
8*(5+3*(85-3))=2008,8*(5-(3-85)*3)=2008
8*(5+6+8*5*6)=2008,8*(5+6*8*5+6)=2008
8*(5*6*8+5+6)=2008,8*(62*8+6)/2=2008
8*(6+5+8*6*5)=2008,8*(6+5*8*6+5)=2008
8*(6*5*8+6+5)=2008,(8+7+487)*4=2008
8*(93*8+9)/3=2008,(93*8+9)/3*8=2008
9*6*4*9+64=2008
3、abcabc=2009,73个:
((1+3)*71+3)*7=2009,(1+4*(9+1))*49=2009
1+8*(31*8+3)=2009,28*(7+2)*8-7=2009
2+8*9*28-9=2009,(28*9-2)*8+9=2009
(3+4)*(7+34)*7=2009,(3+4)*7*(34+7)=2009
(34+7)*(3+4)*7=2009,3*(87-3)*8-7=2009
41*(54-1*5)=2009,41*(54*1-5)=2009
41*(54/1-5)=2009,41*(9+4*(1+9))=2009
(4+3)*7*(4+37)=2009,(4+37)*(4+3)*7=2009
(4/8+24)*82=2009,(4+82/4)*82=2009
49*(1+4*(9+1))=2009,(4+9*5)*(4*9+5)=2009
(4*9+5)*(4+9*5)=2009,4*9*(7+49)-7=2009
(49+7)*4*9-7=2009,498*4+9+8=2009
(4+9/8)*4*98=2009,4*(9/8+4)*98=2009
(4+9/8)*49*8=2009,4*98*(4+9/8)=2009
49*8*(4+9/8)=2009,(54-1*5)*41=2009
(54*1-5)*41=2009,(54/1-5)*41=2009
(5+495)*4+9=2009,(5+(6*7+5)*6)*7=2009
(5+9*4)*(5*9+4)=2009,(5*9+4)*(5+9*4)=2009
(5*9+4)*(5*9-4)=2009,(5*9-4)*(5*9+4)=2009
(6+1)*(7*6-1)*7=2009,(6*(1+7)*6-1)*7=2009
(6*(5+7*6)+5)*7=2009,7*((1+3)*71+3)=2009
7*(3+4)*(7+34)=2009,(7+34)*7*(3+4)=2009
7*(34+7)*(3+4)=2009,7*(4+37)*(4+3)=2009
7*(5+(6*7+5)*6)=2009,7*(6+1)*(7*6-1)=2009
(7*6-1)*7*(6+1)=2009,7*(6*(1+7)*6-1)=2009
7*(6*(5+7*6)+5)=2009,82*(4/8+24)=2009
82*(4+82/4)=2009,8*(31*8+3)+1=2009
84*3*8-4-3=2009,8+498*4+9=2009
8*(4+9/8)*49=2009,(8/6+1)*861=2009
861*(8/6+1)=2009,8*9*28-9+2=2009
9+(28*9-2)*8=2009,(9+4*(1+9))*41=2009
(9+47)*9*4-7=2009,9*(47+9)*4-7=2009
9+(5+495)*4=2009,(9*5+4)*(9*5-4)=2009
(9*5-4)*(9*5+4)=2009,(9-6)*7*96-7=2009
96*7*(9-6)-7=2009,9+8+498*4=2009
(9/8+4)*98*4=2009,98*(4+9/8)*4=2009
98*4*(9/8+4)=2009