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,部编人教版三年级下册数学9,1500,30,370,230,13,960,760,260,32,19,90,68,35,93,700,21,150030370230139607602603219906,=176,=63,=46,=38,=5248,=4140,=5846,=2775,=176=63=46=38=5248=4140=5846=2,6657=95,(只),6657=95(只),5811=638,(人),638 620,能,5811=638(人),31,81,3181,部编人教版三年级下册数学9,1515=225,(平方米),154=60,(米),1515=225(平方米),36,2,31,3,6,20,362313620,30+10+5=45,(分),至少提前,45,分,即,16:15,出发。,30+10+5=45(分)至少提前45分,即16:15,0.4,1.1,2.6,3.9,4.7,0.41.12.63.94.7,=0.6,=8.3,=1.9,=6.6,=3.6,=7.3,=0.6=8.3=1.9=6.6=3.6=7.3,(,1,),1.6-0.8=0.8,(千米),(,2,),3.2-1.6=1.6,(千米),(1)1.6-0.8=0.8(千米)(2)3.2-1.6,部编人教版三年级下册数学9,10504=2000,(千克),10504=2000(千克),4842=6,(天),4842=6(天),28846=12,(名),28846=12(名),375524=1800,(千克),375524=1800(千克),部编人教版三年级下册数学9,
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