(43)小数加减法专项练习240题(有答案)ok

小数加减法专项练习200题〔有答案〕〔1〕7.4+12.86〔2〕20﹣5.674〔3〕141.2﹣48.98〔4〕102+4.36〔5〕32.15﹣27.45〔6〕12.9+5.01〔7〕29.46﹣〔9.46+3.8〕〔8〕15.75+0.65﹣2.75+3.35〔9〕65.71﹣4.99〔10〕12.42+0.48〔11〕0.56+11.534〔12〕44﹣22.13〔13〕91﹣22.035〔14〕52.6+21.237〔15〕9.15﹣2.18〔16〕3.85﹣1.5+1.32，〔17〕15.4+6.87〔18〕3.56+27.84〔19〕100﹣82.13=17.87〔20〕123.56﹣47.9+51.7〔21〕2.7+3.1+2.9+3.2，〔22〕28.42+19.48〔23〕42.56+3.124〔24〕81﹣30.75〔25〕15.6十0.237〔26〕148.2﹣25.62﹣24.38〔27〕4.52﹣0.74﹣0.26〔28〕0.42+5.4+1.58+2.6〔29〕5.9+28.65﹣16.57〔30〕57.5﹣3.25﹣16.75，〔31〕6.02+3.6+1.98〔32〕1.29+3.7+2.71+6.3〔33〕3.07﹣0.38﹣1.62〔34〕3.25+1.79﹣0.59+1.75〔35〕7.5+4.9﹣6.1〔36〕14.8+7.9﹣4.8〔37〕2.608+2.84〔38〕6.07﹣3.869〔39〕1.5﹣0.306〔40〕76.8+26.82〔41〕102.07﹣37.257〔42〕48.64+18.6〔43〕54.75﹣5.25﹣14.75，〔44〕4.68+14.79+5.32﹣10.79，〔45〕48.9﹣12.7﹣0.3，〔46〕56.4﹣39.7+24.3，〔47〕3.6﹣2.8+3.4﹣7.2，〔48〕3.67+18.5+6.33，〔49〕120﹣17.83﹣2.17，〔50〕17.17﹣6.8﹣3.2﹣6.17〔51〕73.8﹣1.64﹣13.8﹣5.36〔52〕6.75﹣〔0.9+3.75〕〔53〕27.38﹣5.34+2.62﹣4.66〔54〕35.72﹣4.9﹣〔5.72+5.1〕〔55〕0.73﹣0.25﹣0.73+0.25〔56〕5.3+0.1+5.3﹣0.1〔57〕12.7﹣4.8﹣5.2．〔58〕23.25﹣6.75﹣3.25〔59〕4.58+2.39+〔5.42+7.61〕〔60〕9.05﹣3.86﹣3.14〔61〕20﹣9.18﹣0.82〔62〕6.53﹣〔1.53+2.6〕〔63〕5.52﹣1.074﹣0.926〔64〕4.21+1.04+0.79〔65〕1.36+4.85+2.64+6.15〔66〕83.7﹣12.83﹣0.17〔67〕4.32+5.43+6.68〔68〕17.17﹣6.8﹣3.2，〔69〕1+12.7+5.9+17.3〔70〕270﹣42.5﹣17.5〔71〕15.68﹣〔7.78﹣4.32〕﹣2.32，〔72〕0.9+9.9+99.9+999.9，〔73〕25.46﹣8.23﹣1.76，〔74〕9.4+0.3﹣6.4，〔75〕15.25+4.72+4.75+5.28，〔76〕34.823﹣〔4.82+15.2〕，〔77〕12.7﹣4.8﹣5.2，〔78〕3.1+25.78+6.9，〔79〕73.8﹣1.64﹣13.8﹣5.36，〔80〕2.15+8.73+1.27+7.85〔81〕11.87﹣〔8.2+1.87〕，〔82〕5.42﹣3.87﹣1.13，〔83〕4.38﹣1.56+0.62﹣0.44，〔84〕46.7﹣15.03﹣4.97〔85〕4.52+0.61+1.39+6.48〔86〕4.27﹣〔1.96﹣1.73〕〔87〕7.27﹣〔1.98+0.27〕，〔88〕13.7+8.65﹣9.628，〔89〕12.8﹣〔4.38+1.614〕〔90〕15.17﹣〔3.6+4.9〕，〔91〕35.6+〔12.6﹣4.4〕，〔92〕16.4+3.5+83.6+166.5〔93〕4.65﹣2.55﹣1.45，〔94〕1.28+0.86+38.72，〔95〕25.74﹣3.57﹣6.43，〔96〕14.5﹣4.68﹣5.32，〔97〕0.485+0.64+3.36，〔98〕72.51﹣9.34﹣12.66，〔99〕14.02﹣4.5+0.98，〔100〕5.76+2.43+0.24+10.57，〔101〕9.28﹣〔3.28+2.55〕，〔102〕9.5+4.85﹣6.13，〔103〕10.75﹣1.86﹣2.75﹣3.16，〔104〕1.3+0.94+0.06+7.7，〔105〕4.45+0.63+5.55，〔106〕45.5﹣〔0.98+5.5〕，〔107〕0.96﹣0.28+0.04﹣0.72，〔108〕12.7+12.5+0.5，〔109〕0.6+0.94﹣0.208，〔110〕27.73﹣〔4.73﹣1.85〕，〔111〕3.84+[26.5﹣〔20﹣8.6〕]，〔112〕7.38﹣5.14+3.62﹣2.86，〔113〕5.86+13.08﹣9.27，〔114〕25.4﹣〔15.4﹣6.4〕，〔115〕47.23﹣7.23﹣5.89，〔116〕4.45+0.63+5.55，〔117〕5.28﹣〔2.9+1.28〕，〔118〕5.25+7.86﹣2.86+4.75，〔119〕0.96﹣0.28+0.04﹣0.72，〔120〕9.42+7.39+1.58，〔121〕18.4﹣1.6﹣5.4，〔122〕75.7+39.4﹣23.86，〔123〕21.21+38.38﹣9.79，〔124〕47.28+1.39+52.72，〔125〕2.45﹣1.68+1.54，〔126〕15﹣8.13﹣1.87，〔127〕5.14+3.225﹣6.302，〔128〕3.95+5.36﹣1.95，〔129〕13.67﹣〔5.45+3.67〕，〔130〕4.26+5.48﹣1.26+4.52，〔131〕14.67+25.91+15.33+4.09，〔132〕10.75﹣〔2.4﹣0.86〕，〔133〕9.61﹣4.38+0.35，〔134〕3.87+4.92+1.13，〔135〕46.24﹣8.66﹣1.34，〔136〕21.9﹣9.22﹣0.78+8.1，〔137〕35.47+39.88﹣12.37，〔138〕93.21﹣5.99﹣14.01，〔139〕15.37+28.94+4.63+1.06，〔140〕42.37﹣〔12.37﹣9.78〕，〔141〕38.78﹣19.59+41.22﹣30.41，〔142〕1.9+19.9+199.9+0.3〔143〕429+31.1+2.04，〔144〕100﹣27.2﹣42.8，〔145〕9﹣〔3.02+1.25〕，〔146〕1.8﹣1.57+0.2，〔147〕5.03﹣2.5+0.96，〔148〕35.72﹣〔5.9+5.72〕，〔149〕25﹣4.7+5.3，〔150〕1.3+2.83+8.7+0.17，〔151〕2.47﹣2.2﹣3.8+7.53，〔152〕6.89+4.7+2.11+5.3，〔153〕7.46﹣2.37﹣1.63，〔154〕14﹣〔3.65+0.24〕，〔155〕70.8﹣1.25﹣1.75，〔156〕5.81+8.3+4.19+11.7，〔157〕4.2+7.64+5.8+2.36，〔158〕14.28﹣2.63﹣7.37，〔159〕6.8+5.26+3.74+3.2，〔160〕6.21﹣3.8+2.2，〔161〕6.03+3.7+2.97，〔162〕17.43﹣6.57﹣2.43，〔163〕20.47﹣〔1.47+6.8〕，〔164〕13.26+4.71+3.47+5.29，〔165〕22.74+8.68﹣13.74，〔166〕12.56﹣6.64﹣3.36，〔167〕45.5﹣〔0.98+5.5〕，〔168〕13.6+7.94+6.4，〔169〕15.19+3.36+4.64+4.81，〔170〕4.7+7.69+5.3+2.31，〔171〕53.78﹣13.6﹣37.4+6.22，〔172〕60﹣〔21.5﹣8.8〕+7.3，〔173〕9.5+4.85﹣6.13，〔174〕75.8﹣〔15.3﹣4.8〕，〔175〕51.27﹣8.66﹣1.34，〔176〕28.4﹣3.96﹣1.04+4.6，〔177〕70.8﹣7.25﹣1.75〔178〕5.81+8.3+4.19+11.7〔179〕794﹣198，〔180〕6756﹣193﹣207，〔181〕0.9+1.08+0.92+0.1，〔182〕13.59﹣6.91﹣0.09，〔183〕4.58+3.38+〔5.48+6.62〕〔184〕73.75﹣〔4.3+8.75〕〔185〕5﹣〔4.19﹣2.83〕，〔186〕1.39+0.72+0.61+3.28，〔187〕8﹣3.7﹣6.3，〔188〕8.28﹣〔1.28+3.7〕，〔189〕15.37﹣7.59+5.73﹣12.41，〔190〕11.72﹣7.85﹣〔1.26+0.46〕，〔191〕15.37+28.44+12.56，〔192〕12.64﹣〔3.96+4.64〕，〔193〕36.26﹣4.78+3.74，〔194〕7.34+7.57+12.66+6.43，〔195〕78.65﹣23.12﹣14.88，〔195〕4.58+2.39+〔5.42+7.61〕，〔196〕8.27+5.84+1.73+2.16，〔197〕18.51﹣9.08﹣0.92，．〔198〕0.09+0.6+5.91+3.4，〔199〕7.85+6.76+2.15〔200〕18.43﹣3.76﹣7.24〔201〕21.65+〔4.8﹣3.65〕〔202〕9.64﹣〔4.64﹣1.23〕〔203〕2.7+17.6+3.3﹣5.6〔204〕9.87﹣3.5+2.13﹣8.5〔205〕5.64+4.97+0.03，〔206〕10.93﹣3.74﹣4.26，〔207〕10﹣6.8﹣3.2，〔208〕5.81+8.3+4.19+11.7，〔209〕3.78﹣1.46+1.54，〔210〕8.45﹣〔5.45+2.98〕；，〔211〕3.01+8.2+6.99+1.8，〔212〕4.3﹣〔5.98﹣5.7〕，〔213〕5.52﹣0.55﹣0.45，〔214〕19.6﹣26.72+80.4﹣3.28，〔215〕27.5﹣10.8﹣0.2，〔216〕43.5+18﹣13.5，〔217〕63.5﹣〔43.5+20〕，〔218〕75.36﹣24.9+24.64﹣25.1，〔219〕12.56﹣6.64﹣3.36，〔220〕45.5﹣〔0.98+5.5〕，〔221〕6+7.94+6.4，〔222〕5.41+3.46﹣2.46，〔223〕2.03﹣0.18﹣2.82+7.97，〔224〕10﹣4.44﹣5.56，〔225〕32.63+7.89﹣6.4，〔226〕3.97+0.7﹣1.32，〔227〕30﹣〔3.8+0.75〕，〔228〕75.6﹣〔14.3﹣8.3〕，参考答案：〔1〕7.4+12.86=20.26；〔2〕20﹣5.674=14.326；〔3〕141.2﹣48.98=92.22；〔4〕102+4.36=106.36；〔5〕32.15﹣27.45=4.7；验算：〔6〕12.9+5.01=17.91；验算：〔7〕29.46﹣〔9.46+3.8〕，=29.46﹣9.46﹣3.8，=20﹣3.8，=16.2；〔8〕15.75+0.65﹣2.75+3.35，=〔15.75﹣2.75〕+〔0.65+3.35〕，=13+4，=17；〔9〕65.71﹣4.99，=65.71﹣〔5﹣0.01〕，=65.71﹣5+0.01，=60.71+0.01，=60.72；〔10〕12.42+0.48=12.9，〔11〕0.56+11.534=12.094，〔12〕44﹣22.13=21.87，〔13〕91﹣22.035=68.965，〔14〕52.6+21.237=73.837，〔15〕9.15﹣2.18=6.97．〔16〕3.85﹣1.5+1.32，=2.35+1.32，=3.67；〔17〕15.4+6.87=22.27验算：〔18〕3.56+27.84=31.4验算：〔19〕100﹣82.13=17.87验算：〔20〕123.56﹣47.9+51.7=127.36验算：〔21〕2.7+3.1+2.9+3.2，=2.7+〔3.1+2.9〕+3.2，=2.7+6+3.2，=11.9．〔22〕28.42+19.48=47.9验算：〔23〕42.56+3.124=45.684验算：〔24〕81﹣30.75=50.25验算：〔25〕15.6十0.237=15.837验算：〔26〕148.2﹣25.62﹣24.38=148.2﹣〔25.62+24.38〕，=148.2﹣50，=98.2．〔27〕4.52﹣0.74﹣0.26=4.52﹣〔0.74+0.26〕=4.52﹣1=3.52；〔28〕0.42+5.4+1.58+2.6=〔0.42+1.58〕+〔5.4+2.6〕=2+8=10；〔29〕5.9+28.65﹣16.57=17.98；〔30〕57.5﹣3.25﹣16.75，=57.5﹣〔3.25+16.75〕，=57.5﹣20，=37.5；〔31〕6.02+3.6+1.98=6.02+1.98+3.6，=8+3.6，=11.6；〔32〕1.29+3.7+2.71+6.3=〔1.29+2.71〕+〔3.7+6.3〕，=4+10，=14；〔33〕3.07﹣0.38﹣1.62=3.07﹣〔0.38+1.62〕，=3.07﹣2，=1.07；〔34〕3.25+1.79﹣0.59+1.75=〔3.25+1.75〕+〔1.79﹣0.59〕，=5+1.2，=6.2；〔35〕7.5+4.9﹣6.1=12.4﹣6.1，=6.3；〔36〕14.8+7.9﹣4.8=14.8﹣4.8+7.9，=10+7.9=17.9〔37〕2.608+2.84=5.448，〔38〕6.07﹣3.869=2.201，〔39〕1.5﹣0.306=1.194，〔40〕76.8+26.82=103.62，〔41〕102.07﹣37.257=64.813，〔42〕48.64+18.6=67.24．〔43〕54.75﹣5.25﹣14.75，=54.75﹣〔14.75+5.25〕，=54.75﹣20，=34.75；〔44〕4.68+14.79+5.32﹣10.79，=〔4.68+5.32〕+〔14.79﹣10.79〕，=10+4，=14；〔45〕48.9﹣12.7﹣0.3，=48.9﹣〔12.7+0.3〕，=48.9﹣13，=35.9；〔46〕56.4﹣39.7+24.3，=16.7+24.3，=41；〔47〕3.6﹣2.8+3.4﹣7.2，=〔3.6+13.4〕﹣〔2.8+7.2〕，=17﹣10，=7；〔48〕3.67+18.5+6.33，=〔3.67+6.33〕+18.5，=10+18.5，=28.5；〔49〕120﹣17.83﹣2.17，=120﹣17.83﹣2.17，=120﹣〔17.83+2.17〕，=120﹣20，=100；〔50〕17.17﹣6.8﹣3.2﹣6.17=〔17.17﹣6.17〕﹣〔6.8+3.2〕，=11﹣10，=1；〔51〕73.8﹣1.64﹣13.8﹣5.36=73.8﹣13.8﹣〔1.64+5.36〕，=60﹣7，=53；〔52〕6.75﹣〔0.9+3.75〕=6.75﹣3.75﹣0.9，=3﹣0.9，=2.1；〔53〕27.38﹣5.34+2.62﹣4.66=22.04+2.62﹣4.66，=24.66﹣4.66，=20；〔54〕35.72﹣4.9﹣〔5.72+5.1〕=35.72﹣〔4.9+5.72+5.1〕，=35.72﹣15.72，=20；〔55〕0.73﹣0.25﹣0.73+0.25=0.75﹣0.75﹣0.25+0.25，=0﹣0.25+0.25，=0﹣0，=0；〔56〕5.3+0.1+5.3﹣0.1=5.3+5.3+0.1﹣0.1，=10.6+0.1﹣0.1，=10.7﹣0.1，=10.6；〔57〕12.7﹣4.8﹣5.2．=12.7﹣〔4.8+5.2〕；=12.7﹣10，=2.7．〔58〕23.25﹣6.75﹣3.25=23.25﹣〔6.75+3.25〕，=23.25﹣10，=13.25．〔59〕4.58+2.39+〔5.42+7.61〕=〔4.58+5.42〕+〔2.39+7.61〕=10+10，=20；〔60〕9.05﹣3.86﹣3.14，=9.05﹣〔3.86+3.14〕，=9.05﹣7，=2.05；〔61〕20﹣9.18﹣0.82，=20﹣〔9.18+0.82〕，=20﹣10，=10．〔62〕6.53﹣〔1.53+2.6〕，=6.53﹣1.53﹣2.6，=4﹣2.6，=1.4．〔63〕5.52﹣1.074﹣0.926，=5.52﹣〔1.074+0.926〕，=5.52﹣2，=3.52．〔64〕4.21+1.04+0.79，=4.21+0.79+1.04，=5+1.04，=6.04〔65〕1.36+4.85+2.64+6.15，=〔1.36+2.64〕+〔4.85+6.15〕，=4+11，=15；〔66〕83.7﹣12.83﹣0.17，=83.7﹣〔12.83+0.17〕，=83.7﹣13，=70.7；〔67〕4.32+5.43+6.68，=4.32+6.68+5.43，=11+5.43，=16.43；〔68〕17.17﹣6.8﹣3.2，=17.17﹣〔6.8+3.2〕，=17.17﹣10，=7.17；〔69〕1+12.7+5.9+17.3=1+〔12.7+17.3〕+5.9，=1+30+5.9，=36.9；〔70〕270﹣42.5﹣17.5=270﹣〔42.5+17.5〕，=270﹣60，=210；〔71〕15.68﹣〔7.78﹣4.32〕﹣2.32，=15.68﹣7.78+4.32﹣2.32，=〔15.68+4.32〕﹣〔7.78+2.32〕，=20﹣10，=10；〔72〕0.9+9.9+99.9+999.9，=1﹣0.1+10﹣0.1+100﹣0.1+1000﹣0.1，=〔1+10+100+1000〕﹣〔0.1+0.1+0.1+0.1〕，=1111﹣0.4，=1110.6〔73〕25.46﹣8.23﹣1.76，=25.46﹣〔8.23+1.76〕，=25.46﹣9.99=15.45；〔74〕9.4+0.3﹣6.4，=〔9.4﹣6.4〕+0.3，=3+0.3，=3.3；〔75〕15.25+4.72+4.75+5.28，=〔15.25+4.75〕+〔4.72+5.28〕，=20+10，=30；〔76〕34.823﹣〔4.82+15.2〕，=34.823﹣4.82﹣15.2，=30.003﹣15.2，=14.803；〔77〕12.7﹣4.8﹣5.2，=12.7﹣〔4.8+5.2〕，=12.7﹣10，=2.7；〔78〕3.1+25.78+6.9，=〔3.1+6.9〕+25.78，=10+25.78，=35.78；〔79〕73.8﹣1.64﹣13.8﹣5.36，=〔73.8﹣13.8〕﹣〔1.64+5.36〕，=60﹣7，=53〔80〕2.15+8.73+1.27+7.85=〔2.15+7.85〕+〔8.73+1.27〕，=10+10，=20；〔81〕11.87﹣〔8.2+1.87〕，=11.87﹣1.87﹣8.2，=10﹣8.2，=1.8；〔82〕5.42﹣3.87﹣1.13，=5.42﹣5，=0.42；〔83〕4.38﹣1.56+0.62﹣0.44，=〔4.38+0.62〕﹣〔1.56+0.44〕，=5﹣2，=3；〔84〕46.7﹣15.03﹣4.97=46.7﹣〔15.03+4.97〕，=46.7﹣20，=26.7；〔85〕4.52+0.61+1.39+6.48=〔4.52+6.48〕+〔0.61+1.39〕，=11+2，=13；〔86〕4.27﹣〔1.96﹣1.73〕=4.27﹣0.23，=4.04；〔87〕7.27﹣〔1.98+0.27〕，=7.27﹣0.27﹣1.98，=7﹣1.98，=5.02；〔88〕13.7+8.65﹣9.628，=22.35﹣9.628，=12.722；〔89〕12.8﹣〔4.38+1.614〕=12.8﹣5.994=6.806〔90〕15.17﹣〔3.6+4.9〕，=15.17﹣8.5，=6.67；〔91〕35.6+〔12.6﹣4.4〕，=35.6+8.2，=43.8；〔92〕16.4+3.5+83.6+166.5=〔16.4+83.6〕+〔3.5+166.5〕=100+170=270；〔93〕4.65﹣2.55﹣1.45，=4.65﹣〔2.55+1.45〕，=4.65﹣4，=0.65；〔94〕1.28+0.86+38.72，=〔1.28+38.72〕+0.86，=40+0.86，=40.86；〔95〕25.74﹣3.57﹣6.43，=25.74﹣〔3.57+6.43〕，=25.74﹣10，=15.74；〔96〕14.5﹣4.68﹣5.32，=14.5﹣〔4.68+5.32〕，=14.5﹣10，=4.5；〔97〕0.485+0.64+3.36，=0.485+〔0.64+3.36〕，=0.485+4，=4.485；〔98〕72.51﹣9.34﹣12.66，=72.51﹣〔9.34+12.66〕，=72.51﹣22，=50.51；〔99〕14.02﹣4.5+0.98，=〔14.02+0.98〕﹣4.5，=15﹣4.5，=10.5；〔100〕5.76+2.43+0.24+10.57，=〔5.76+0.24〕+〔2.43+10.57〕，=6+13，=19；〔101〕9.28﹣〔3.28+2.55〕，=9.28﹣3.28﹣2.55，=6﹣2.55，=3.45；〔102〕9.5+4.85﹣6.13，=14.35﹣6.13，=8.22；〔103〕10.75﹣1.86﹣2.75﹣3.16，=〔10.75﹣2.75〕﹣〔1.86+3.16〕，=8﹣5.02，=2.98〔104〕1.3+0.94+0.06+7.7，=〔1.3+7.7〕+〔0.94+0.06〕，=9+1，=10；〔105〕4.45+0.63+5.55，=〔4.45+5.55〕+0.63，=10+0.63，=10.63；〔106〕45.5﹣〔0.98+5.5〕，=45.5﹣0.98﹣5.5，=〔45.5﹣5.5〕﹣0.98，=40﹣0.98，=40﹣〔1﹣0.02〕，=40﹣1+0.2，=39.02；〔107〕0.96﹣0.28+0.04﹣0.72，=〔0.96+0.04〕﹣〔0.28+0.72〕，=1﹣1，=0．〔108〕12.7+12.5+0.5，=12.7+〔12.5+0.5〕，=12.7+13，=25.7〔109〕0.6+0.94﹣0.208，=1.54﹣0.208，=1.332；〔110〕27.73﹣〔4.73﹣1.85〕，=27.73﹣4.73+1.85，=23+1.85，=24.85；〔111〕3.84+[26.5﹣〔20﹣8.6〕]，=3.84+[26.5﹣11.4]，=3.84+15.1，=18.94〔112〕7.38﹣5.14+3.62﹣2.86，=〔7.38+3.62〕﹣〔5.14+2.86〕，=11﹣8，=3；〔113〕5.86+13.08﹣9.27，=18.94﹣9.27，=9.67；〔114〕25.4﹣〔15.4﹣6.4〕，=25.4﹣15.4+6.4，=10+6.4，=16.4；〔115〕47.23﹣7.23﹣5.89，=40﹣5.89，=34.11．〔116〕4.45+0.63+5.55，=4.45+5.55+0.63，=10+0.63，=10.63；〔117〕5.28﹣〔2.9+1.28〕，=5.28﹣1.28﹣2.9，=4﹣2.9，=1.1；〔118〕5.25+7.86﹣2.86+4.75，=〔5.25+4.75〕+〔7.86﹣2.86〕，=10+5，=15；〔119〕0.96﹣0.28+0.04﹣0.72，=〔0.96+0.04〕﹣〔0.28+0.72〕，=1﹣1，=0．〔120〕9.42+7.39+1.58，=〔9.42+1.58〕+7.39，=11+7.39，=18.39；〔121〕18.4﹣1.6﹣5.4，=18.4﹣〔1.6+5.4〕，=18.4﹣7，=11.4〔122〕75.7+39.4﹣23.86，=115.1﹣23.86，=91.24；〔123〕21.21+38.38﹣9.79，=59.59﹣9.79，=49.8；〔124〕47.28+1.39+52.72，=47.28+52.72+1.39，=100+1.39，=101.39；〔125〕2.45﹣1.68+1.54，=0.77+1.54，=2.31〔126〕15﹣8.13﹣1.87，=15﹣〔8.13+1.87〕，=15﹣10，=5；〔127〕5.14+3.225﹣6.302，=8.365﹣6.302，=2.063；〔128〕3.95+5.36﹣1.95，=3.95﹣1.95+5.36，=2+5.36，=7.36；〔129〕13.67﹣〔5.45+3.67〕，=13.67﹣5.45﹣3.67，=13.67﹣3.67﹣5.45，=10﹣5.45，=4.55；〔130〕4.26+5.48﹣1.26+4.52，=〔4.52+5.48〕+〔4.26﹣1.26〕，=10+3；=13；〔131〕14.67+25.91+15.33+4.09，=〔14.67+15.33〕+〔25.91+4.09〕，=30+30，=60〔132〕10.75﹣〔2.4﹣0.86〕，=10.75﹣1.54，=9.21；〔133〕9.61﹣4.38+0.35，=5.23+0.35，=5.58；〔134〕3.87+4.92+1.13，=〔3.87+1.13〕+4.92，=5+4.92，=9.92；〔135〕46.24﹣8.66﹣1.34，=46.24﹣〔8.66+1.34〕，=46.24﹣10，=36.24；〔136〕21.9﹣9.22﹣0.78+8.1，=21.9﹣〔9.22+0.78〕+8.1，=21.9﹣10+8.1，=11.9+8.1，=20；〔137〕35.47+39.88﹣12.37，=〔35.47﹣12.37〕+39.88，=23.1+39.88，=62.98；〔138〕93.21﹣5.99﹣14.01，=93.21﹣〔5.99+14.01〕，=93.21﹣20，=73.21；〔139〕15.37+28.94+4.63+1.06，=〔15.37+4.63〕+〔28.94+1.06〕，=20+30，=50；〔140〕42.37﹣〔12.37﹣9.78〕，=42.37﹣12.37+9.78，=30+9.78，=39.78〔141〕38.78﹣19.59+41.22﹣30.41，=38.78+41.22﹣19.59﹣30.41，=〔38.78+41.22〕﹣〔19.59+30.41〕，=80﹣50，=30；〔142〕1.9+19.9+199.9+0.3=1.9+19.9+199.9+0.1+0.1+0.1，=〔1.9+0.1〕+〔19.9+0.1〕+〔199.9+0.1〕，=2+20+200，=222；〔143〕429+31.1+2.04，=429+〔31.1+2.04〕，=429+33.14，=462.14，〔144〕100﹣27.2﹣42.8，=100﹣〔27.2+42.8〕，=100﹣70，=30，〔145〕9﹣〔3.02+1.25〕，=9﹣4.27，=4.73，〔146〕1.8﹣1.57+0.2，=1.8+0.2﹣1.57，=2﹣1.57，=0.43〔147〕5.03﹣2.5+0.96，=2.53+0.96，=3.49；〔148〕35.72﹣〔5.9+5.72〕，=35.72﹣5.9﹣5.72，=35.72﹣5.72﹣5.9，=30﹣5.9，=24.1；〔149〕25﹣4.7+5.3，=20.3+5.3，=25.6；〔150〕1.3+2.83+8.7+0.17，=〔1.3+8.7〕+〔2.83+0.17〕，=10+3，=13；〔151〕2.47﹣2.2﹣3.8+7.53，=〔2.47+7.53〕﹣〔2.2+2.8〕，=10﹣5，=5〔152〕6.89+4.7+2.11+5.3，=〔6.89+2.11〕+〔4.7+5.3〕，=9+10，=19；〔153〕7.46﹣2.37﹣1.63，=7.46﹣〔2.37+1.63〕，=7.46﹣4，=3.46；〔154〕14﹣〔3.65+0.24〕，=14﹣3.89，=10.11；〔155〕70.8﹣1.25﹣1.75，=70.8﹣〔1.25+1.75〕，=70.8﹣3，=67.8；〔156〕5.81+8.3+4.19+11.7，=〔5.81+4.19〕+〔8.3+11.7〕，=10+20，=30；〔157〕4.2+7.64+5.8+2.36，=〔4.2+5.8〕+〔7.64+2.36〕，=10+10，=20；〔158〕14.28﹣2.63﹣7.37，=14.28﹣〔2.63+7.37〕，=14.28﹣10，=4.28；〔159〕6.8+5.26+3.74+3.2，=〔6.8+3.2〕+〔5.26+3.74〕，=10+9，=19；〔160〕6.21﹣3.8+2.2，=2.41+2.2，=4.61；〔161〕6.03+3.7+2.97，=〔6.03+2.97〕+3.7，=9+3.7，=12.7；〔162〕17.43﹣6.57﹣2.43，=17.43﹣〔6.57+2.43〕，=17.43﹣9，=8.43；〔163〕20.47﹣〔1.47+6.8〕，=20.47﹣1.47﹣6.8，=19﹣6.8，=12.2；〔164〕13.26+4.71+3.47+5.29，=〔13.26+3.47〕+〔4.71+5.29〕，=16.73+10，=26.73；〔165〕22.74+8.68﹣13.74，=〔22.74﹣13.74〕+8.68，=9+8.68，=17.68〔166〕12.56﹣6.64﹣3.36，=12.56﹣〔6.64+3.36〕，=12.56﹣10，=2.56；〔167〕45.5﹣〔0.98+5.5〕，=45.5﹣0.98﹣5.5，=45.5﹣5.5﹣0.98，=40﹣0.98，=39.02；〔168〕13.6+7.94+6.4，=〔13.6+6.4〕+7.94，=20+7.94，=27.94；〔169〕15.19+3.36+4.64+4.81，=〔15.19+4.81〕+〔3.36+4.64〕，=20+8，=28〔170〕4.7+7.69+5.3+2.31，=〔4.7+5.3〕+〔7.69+2.31〕，=10+10，=20．〔171〕53.78﹣13.6﹣37.4+6.22，=〔53.78+6.22〕﹣〔13.6+37.4〕，=60﹣51，=9．〔172〕60﹣〔21.5﹣8.8〕+7.3，=60﹣12.7+7.3，=47.3+7.3，=54.6〔173〕9.5+4.85﹣6.13，=14.35﹣6.13，=8.22；〔174〕75.8﹣〔15.3﹣4.8〕，=75.8﹣10.5，=65.3；〔175〕51.27﹣8.66﹣1.34，=51.27﹣〔8.66+1.34〕，=51.27﹣10，=41.27；〔176〕28.4﹣3.96﹣1.04+4.6，=〔28.4+4.6〕﹣〔3.96+1.04〕，=33﹣5，=28；〔177〕70.8﹣7.25﹣1.75=70.8﹣〔7.25+1.75〕，=70.8﹣9，=61.8；〔178〕5.81+8.3+4.19+11.7=〔5.81+4.19〕+〔8.3+1.7〕，=10+10，=20；〔179〕794﹣198，=794﹣〔200﹣2〕，=794﹣200+2，=594+2，=596；〔180〕6756﹣193﹣207，=6756﹣〔193+207〕，=6756﹣400，=6356；〔181〕0.9+1.08+0.92+0.1，=〔0.9+0.1〕+〔1.08+0.92〕，=1+2，=3；〔182〕13.59﹣6.91﹣0.09，=13.59﹣〔6.91+0.09〕，=13.59﹣7，=6.59〔183〕4.58+3.38+〔5.48+6.62〕=4.58+5.48+〔3.38+6.62〕，=10.06+10，=20.06；〔184〕73.75﹣〔4.3+8.75〕=73.75﹣8.75﹣4.3，=65﹣4.3，=60.7；〔185〕5﹣〔4.19﹣2.83〕，=5﹣1.36，=3.64；〔186〕1.39+0.72+0.61+3.28，=〔1.39+0.61〕+〔0.72+3.28〕，=2+4，=6；〔187〕8﹣3.7﹣6.3，=8﹣〔3.7+6.3〕，=8﹣10，=﹣2；〔188〕8.28﹣〔1.28+3.7〕，=8.28﹣1.28﹣3.7，=7﹣3.7，=3.3〔189〕15.37﹣7.59+5.73﹣12.41，=〔15.37+5.73〕﹣〔7.59+12.41〕，=21﹣20，=1；〔190〕11.72﹣7.85﹣〔1.26+0.46〕，=11.72﹣7.85﹣1.72，=11.72﹣1.72﹣7.85，=10﹣7.85，=2.15〔191〕15.37+28.44+12.56，=15.37+〔28.44+12.56〕，=15.37+41，=56.37；〔192〕12.64﹣〔3.96+4.64〕，=12.64﹣3.96﹣4.64，=12.64﹣4.64﹣3.96，=8﹣3.96，=4.04；〔193〕36.26﹣4.78+3.74，=36.26+3.74﹣4.78，=40﹣4.78，=35.22；〔194〕7.34+7.57+12.66+6.43，=〔7.34+12.66〕+〔7.57+6.43〕，=20+14，=34；〔195〕78.65﹣23.12﹣14.88，=78.65﹣〔23.12+14.88〕，=78.65﹣38，=40.65〔195〕4.58+2.39+〔5.42+7.61〕，=〔4.58+5.42〕+〔2.39+7.61〕，=10+10，=20．〔196〕8.27+5.84+1.73+2.16，=〔8.27+1.73〕+〔5.84+2.16〕，=10+8，=18．〔197〕18.51﹣9.08﹣0.92，=18.51﹣〔9.08+0.9