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实用文档2225355112-(1+2)17.15-8.47-1.5317-3-40.75++57564684+0.375513444444.25-3-(2-1)+9+99+999+999925×(37×8)25×32×12566455555153125×8.80.125×0.25×32400÷125÷825×÷×32103531311757431×72÷313×(5-5.375)(++)×7245×(+-0.6)81384812182491523513.4×99+3.4187.7×11-187.7(+)×15×110.625×0.5++×15118262.5%1实用文档715271131÷2+×43×+57.125×-0.52.42÷+4.58×1-4÷395119822433117177112522×+25×75%-7×0.750.25×63.5-×136×2.5—2×4÷+×4421521595911714547317×4+5÷1+897×-37.5%+104×0.3753.5×1+1.25×2+3.8÷111919711841045311897991110.125×+×8.25+12.5%×+×+×58+×41+48251625161688831312x+x=2.252x-1.6=5.420%x+=4x+x=26424532实用文档313520-15%x=5x÷=183-2x=x-75%x=46523