文档介绍：①2+1=②1+1=③3+1=④3-1=⑤2+2=⑥1+3=⑦4-1=⑧3+2=⑨3-3=⑩4+1=⑪1+0=⑫3-0=⑬0+2=⑭2-1=⑮4-2=⑯4-0=4-4=3-2=1-1=2+3=5-2=1+2=2-2=2+0=1+2=3-0=4-3=0+5=1+3=3+0=2-2=4+1=①2+2=②2-1=③4-1=④4-3=⑤1+2=⑥3-2=⑦4-2=⑧1+0=⑨2+1=⑩0+5=⑪3+1=⑫1+3=⑬2-1=⑭0+3=⑮5+0=⑯1+1=4-3=4-2=2+2=1+3=5-0=3-2=2+1=1+1=1+2=4+0=3-1=5-5=4-2=5-3=4-2=5-3=①3+2=②1+2=③1+1=④5-4=⑤5-2=⑥4-2=⑦3-2=⑧1+3=⑨4-1=⑩3+1=⑪2-1=⑫2+2=⑬2+0=⑭4+1=⑮0+5=⑯2+3=4-3=5-3=4+1=5-4=2+3=2+1=5-2=3-0=3-1=2-1=3-2=4-0=5-1=0+3=3+4=5-5=①1+0=②0+2=③2-0=④4-0=⑤3-0=⑥3-3=⑦2-2=⑧4+1=⑨2+1=⑩3+0=⑪4-2=⑫0+2=⑬2+2=⑭4-1=⑮3+1=⑯1+4=4-1=3-1=5-2=1-1=5-5=0+1=3-2=5-3=0+1=5-4=0+5=0+4=3+2=4-2=2+3=2-2=①5152②53③54④55⑤41⑥42⑦43⑧44①31②32③33④21⑤22⑥32⑦31⑧33①21②22③41④42⑤43⑥44⑦51⑧52①53②54③55④22⑤21⑥32⑦31⑧33①41②42③43④44⑤53⑥52⑦54⑧①2+2=②2-1=③3-1=④4-3=⑤1+2=⑥4-2=⑦1+1=⑧3-2=⑨3○2+1⑩3+1○1⑪2○3-1⑫1○1+2⑬2○1-1⑭1○3+1⑮4○2+1⑯3○2+23○3-12○1+31○4-12○1+23○4-24○3-22○2-13○2+12○5-34○2-15○1+24○2-23○4-33○2-14○3-23○5-2①3-2=②2+1=③4-2=④2+2=⑤1+2=⑥3-2=⑦3+1=⑧4-1=⑨4+1=⑩3○2+1⑪4○1+3⑫2○4-1⑬1+4○4⑭3+2○5⑮2+2○3⑯4-1○41+1○31+2○34-3○32+2○44-2○33-1○33+3○61+4○53+4=5-5=3+2○44-2○55+0○43-3○13+2○53-2○1 =4-0 =5-3 =0+1 =5-2 =4-2⑥4-()=3⑦3-()=2⑧5-()=1⑨4+()=5⑩2+()=4⑪1+()=4⑫3+()=5⑬2+()=3⑭3+()=5⑮1-()=1⑯3-()=12+()=54-()=23-()=02+()=2()+3=5()+1=4()-2=22-()=12+()=5()+1=5()-3=2()+1=4()-2=15-()=34+()=55-()=1①0-0=②4-3=③0+0=④5-4=⑤4-2=⑥2+2=⑦1+3=⑧5-2=⑨4+()=5⑩2+()=4⑪1+()=4⑫3+()=5⑬1+()=3⑭4+()=4⑮2-()=1⑯3-()=14-()=35-()=24-()=02+()=2()+4=5()+1=4()-3=22-()=05-3=4-()=04-2=3-0=2-()=23+2=4-1=5-3=①1+2=②3-1=③1+1=④2+1=⑤3-2=⑥1+3=⑦2+0=⑧2+2=⑨3-()=0⑩4-1=⑪5-()=2⑫3-2=⑬4-()=2⑭4-2=⑮3-3=⑯4-3=4-4=2+3=5-3=4+1=3+2=1+2=5-2=2+()=52-2=2-()=03-1=1-1=5-0=3-()=15-4=3-()=2①3-3=②6-0=③1+2=④1-1=⑤3-2=⑥2-2=⑦4+()=5⑧6-()=4⑨4-()=1⑩()+2=4⑪4-()=2⑫1+()=4⑬5-()=3⑭3-()=2⑮()+2=6⑯()+0=3()+4=53+()=44-()=35-()=24-()=12+()=41+()=46-()=23-2=