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练习七,(选自教材,P25-P27,),28,420,43,12,42,2,25,17,2,124=48,(人),总共多少人?,154=60,(棵),总共植多少棵树?,=1210,=120,=,(,100+3,),45,=4500+135,=4635,=305,=150,=1006,=600,=46,(,100-1,),=4600-46,=4554,=13,(,7+3,),=130,=953-,(,521+279,),=953-800,=153,=76212+123,=,(,762+3,),12,=15512,=1860,=15,(,100-3,),=1500-45,=1455,=2548+254,=800+100,=900,=,(,11-1,),48,=1048,=480,=38125,=3000,=,(,472+28,),6,=5006,=3000,=95,(,100+2,),=9500+190,=9690,=35,(,100-2,),=3500-70,=3430,(,79+100,),2,=1792,=358,(千米),答:天津到济南的铁路长,358,千米。,(,15+18,),10,=3310,=330,(张),330,297,答:,10,天后可以完成任务。,9,(,2+6,),15=1080,(元),108-9,(,2+6,),15=540,(元),答:张师傅得工资,1080,元,刘师傅得工资,540,元。,11,35,290,806,16,367,270,(,42+48,),=27090,=3,(时),答:经过,3,小时,两车相距,270km,。,(,95+50,),5,=1455,=725,(元),956+504,=570+200,=770,(元),(,283-11,),(,23+11,),=27234,=8,(天),答:再过,8,天刚好检修完。,2005+2388+30012,=1000+1472+3600,=6072,(元),答:今年收入为,6072,元。,(,43+37,),125,=80125,=10000,(棵),答:松树和柏树共有,10000,棵。,
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