500.001=500.001=0.82+4.6=0.82+4.6=10-4.18=10-4.18=9.10.7=9.10.7=90.25=90.25=03.09=03.09=0.250.3=0.250.3=0.052=0.052=5240.25=5240.25=0.8321.25=0.8321.25=0.40.07=0.40.07=1.4+1.4=1.4+1.4=1.62.5=1.62.5=52=52=360000360000平方米平方米=()=()公顷公顷3.8263.826千克千克=()=()千克千克()()克克7 7千米千米745745米米=()=()千米千米6 6时时4242分(分()时)时0.50.5分(分()秒)秒2x+6x=2x+6x=a+a+a+a=a+a+a+a=800.01=800.01=0.6+6.3=0.6+6.3=10-3.81=10-3.81=2.80.4=2.80.4=60.25=60.25=04.23=04.23=0.650.8=0.650.8=0.253=0.253=870.42.5=870.42.5=0.08531.25=0.08531.25=0.