简便运算4 31 +3.2+5 32 +6.825×(8×0.4)×1.257154 -(2154 - 231 )(1211 +187 + 245 )×7293.5÷3 21 ÷ 721125-997998+1246+9989(8700+870+87)÷87125×8.81.3+4.25+3.7+3.7517.15-(3.5-2.85)3.4×99+3.44.8×1.010.4×(2.5÷73)(1.6+1.6+1.6+1.6)×25( 94 + 65 -187 )÷ 3617110025712.3-2.45-5.7-4.5597 ÷2 51 +115 × 920.125×0.25×6464.2×87+0.642×130078×36+7.8×741-7 542113 ×17+1217 ×887 × 21 +0.125× 21 +0.52.42÷ 43 +4.58× 311 -4÷325÷100 26254.25-3 65 -(2 61 -1 43 )3.8÷3.9+3.9÷0.1+0.1÷3.912.1-(151 + 211 )×105)37.125.8(63.975.4)38.648.2(17.348.7511)9518.3(957416666179079213333877.21111.07.09999.03.672.109.1368.562.108.1485269.3752255332.33.198.168.65.186.678.515.818.155.813.541352.422351.122354123341223411234812466812446812246811246834 -( 15 + 13 )×9825 ×34 - 12 ÷458 ×[1÷(34 + 13 )][16 -( 514 - 13 )]×7957 + 98 ×59 + 381 - 58 ÷2528 - 31014 ×37 + 47 ÷45 -(67 ÷ 314 + 613 )435252126141211514178171415910713151321 425 -(2.5+1.9)× (0.5-0.5)425 -2.5+1.9× (0.5-0.5)425 -2.5+1.9× 0.5-0.5[425 -(2.5+1.9× 0.5)]-0.5[425 -(2.5+1.9)] × ((0.5-0.5)[425 -(2.5+1.9) × 0.5]-0.51213 -412 -214 -518 -12.5%0.125×34 +18 ×8.25+12.5%(78 +1316 )÷13162.5×37 ×0.4×21315 314 -2.25-73489 ×[1516 +( 716 -14 )÷12 ]10×[(45 -0.5) ÷37 ](2.7-4.25×25 )÷2.8×471.25+114 ×7.4+125%÷ 5810-4.68÷7.2+0.05157 ×(5÷56 -56 ÷5)18.09×[(1.5+223 )÷3.75-23 ]0.84÷0.3÷(1.96×18.9)56 -(0.15+ 920 ) ÷1.81325+540÷18×152.5÷8+9.5×18 +4×0.125[2.1+7÷(3 112 -1.625)] ×1232.5×25 -2.1÷13 +9.63(713 +713 ×2+713 )÷427 ×[(413 -3.5) ÷58 ](234 +23 -156 )×122.5÷8+3.5×18 +0.125(9.5+912 +912 +9.5) ×1212313 -(157 +18 ÷134...