文档介绍：第1次82+(19-1)=53-(24+29)=90+(47-9)=58+(48-45)=61-(9+47)=91-(22+35)=81-(18+8)=59-(27+28)=70+(34-26)=89-(33+8)=76+(26-17)=93-(45+19)=97-(33+13)=88+(42-4)=67-(21+9)=89-(2+19)=65-(32+20)=90+(48-15)=67-(5+35)=93-(44+7)=第2次85-(19+24)=75-(4+41)=66+(41-10)=59-(31+15)=88+(49-39)=95-(36+17)=95-(32+47)=56+(44-30)=75-(34+2)=85-(15+46)=93-(35+31)=98+(49-33)=82+(32-5)=58+(15-8)=76+(41-14)=54+(42-13)=80+(44-43)=60+(35-33)=69-(16+49)=97-(5+40)=第3次62+(33-9)=70+(30-3)=67-(31+27)=88+(28-26)=74+(46-42)=78+(43-38)=66+(29-24)=66+(26-17)=71-(25+30)=72+(49-24)=70+(37-7)=87-(49+10)=62+(44-9)=94+(41-24)=78+(33-15)=63-(26+22)=52+(4-3)=52+(36-16)=71-(12+25)=52+(49-45)=第4次82+(43-18)=96+(29-23)=81-(9+29)=67-(12+14)=78+(43-31)=97-(24+28)=71-(23+42)=52+(11-11)=84+(40-15)=57-(28+9)=66+(44-27)=56+(46-35)=51-(21+16)=66+(16-6)=90+(10-1)=93-(5+11)=59-(24+19)=91-(35+28)=54+(44-32)=87-(35+39)=第5次58+(36-27)=92+(48-5)=50+(24-14)=52+(46-16)=70+(44-39)=86+(21-10)=87-(21+36)=71-(40+7)=54+(42-25)=92+(19-1)=55-(38+4)=64+(38-10)=92+(44-32)=93-(25+27)=83-(24+40)=51-(25+7)=97-(46+8)=95-(44+32)=73-(9+34)=68+(35-5)=第6次76+(44-4)=94+(46-31)=86+(44-23)=75-(23+15)=62+(22-4)=98+(19-8)=88+(36-8)=77-(11+4)=69-(17+4)=65-(14+11)=80+(27-12)=83-(47+7)=52+(35-20)=54+(15-2)=94+(45-2)=51-(14+16)=58+(47-21)=96+(44-12)=57-(18+34)=70+(21-11)=第7次71-(16+39)=90+(47-1)=91-(44+22)=86+(23-6)=54+(31-21)=68+(36-11)=56+(40-9)=96+(32-9)=51-(11+4)=53-(23+1)=92+(30-26)=89-(37+46)=97-(43+8)=86+(20-8)=51-(14+19)=54+(15-9)=91-(19+43)=79-(23+26)=92+(44-24)=97-(36+20)=第8次52+(28-10)=51-(4+14)=87-(7+44)=79-(9+4)=76+(48-48)=57-(6+25)=62+(46-41)=93-(24+48)=56+(34-31)=77-(40+36)=79-(4+17)=82+(40-23)=91-(35+23)=61-(20+17)=91-(37+29)=51-(6+40)=65-(42+10)=68+(12-9)=90+(49-22)=92+(46-17)=第9次79-(11+12)=70+(38-10)=97-(24+16)=58+(36-11)=76+(39-9)=97-(22+25)=66+(26-7)=69-(23+46)=84+(32-30)=55-(14+36)=56+(28-24)=69-(46+17)=51-(14+7)=87-(32+14)=94+(32-29)=85-(37+36)=94+(42-22)=86+(33-7)=94+(49-14)=96+(47-9)=第10次68+(29-10)=65-(9+44)=80+(8-5)=69-(15+2)=77-(21+20)=65-