个数能算点的组合.doc

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1、个数能算点的组合————————————————————————————————作者：————————————————————————————————日期：4个数能算24点的组合：（一共有404种）1118(1+1+1)*8=241126(1+1+2)*6=241127(1+2)*(1+7)=241128:(1*1+2)*8=241129:(1+2)*(9-1)=2411210:(1+1)*(2+10)=241134:(1+1)*3*4=241135:(1+3)*(1+5)=241136:(1*1+3)*6=241137:(1*1+7)*

2、3=241138:(1-1+3)*8=241139:(1+1)*(3+9)=2411310:(10-(1+1))*3=241144:(1+1+4)*4=241145:(1*1+5)*4=241146:(1-1+4)*6=241147:(7-1*1)*4=241148:(1+1)*(4+8)=241149:(4-1)*(9-1)=2411410:(1+1)*10+4=241155:5*5-1*1=241156:(5-1*1)*6=241157:(1+1)*(5+7)=241158:(5-(1+1))*8=241166:(1+1)*(6+6)

3、=241168:6*8/(1+1)=241169:(1+1)*9+6=2411710:(1+1)*7+10=241188:(1+1)*8+8=241224:(1+2)*2*4=241225:(1+5)*(2+2)=241226:(1+2)*(2+6)=241227:(7-1)*(2+2)=241228:(2-1+2)*8=241229:(1+2+9)*2=2412210:(1+2)*(10-2)=241233:(1+3)*2*3=241234:(1+2+3)*4=241235:(1+2)*(3+5)=241236:(3-1+2)*6=24

4、1237:1+2+3*7=241238:(2-1)*3*8=241239:3*9-(1+2)=2412310:(10-1*2)*3=241244:(1+2)*(4+4)=241245:(5-1+2)*4=241246:(2-1)*4*6=241247:(1-2+7)*4=241248:(1-2+4)*8=241249:(9-(1+2))*4=2412410:1*2*10+4=241255:1-2+5*5=241256:(1-2+5)*6=241257:1*2*(5+7)=241258:(5-1*2)*8=241259:(1+2)*5+9=

5、2412510:2*10-1+5=241266:(1+2)*6+6=241267:(7-(1+2))*6=241268:(6-(1+2))*8=241269:1*2*9+6=2412610:(1+2)*10-6=241277:(7*7-1)/2=241278:(1+7)*2+8=241279:2*9-1+7=2412710:1*2*7+10=241288:1*2*8+8=241289:8*9/(1+2)=2412810:10+(8-1)*2=241333:(1+3)*(3+3)=241334:(1*3+3)*4=241335:1*3*(3

6、+5)=241336:(6-1+3)*3=241337:1*3+3*7=241338:(1+8)*3-3=241339:(1+3)*(9-3)=2413310:(1-3+10)*3=241344:(4-1+3)*4=241345:1+3+4*5=241346:6/(1-3/4)=241347:4*7-(1+3)=241348:(1+3)*4+8=241349:(9-1*3)*4=2413410:(1+3)*(10-4)=241356:(1+5)*3+6=241357:(3-1)*(5+7)=241358:(1-3+5)*8=241359:

7、1*3*5+9=2413510:3*10-(1+5)=241366:(1-3+6)*6=241367:(7-1*3)*6=241368:(6-1*3)*8=241369:6+(3-1)*9=2413610:1*3*10-6=241377:(7-1)*(7-3)=241378:(7-(1+3))*8=241379:(1+7)*9/3=2413710:10+(3-1)*7=241388:(1+3)*8-8=241389:8*9/1*3=2413810:(10-1)/3*8=241399:(9-1)/3*9=2413910:(1+10)*3-9

8、=24131010:1+3+10+10=241444:(1+4)*4+4=241445:1*4+4*5=241446:(1+6)*4-4=241447:4*7-1*4=241448:1*4*4