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练习五,(选自教材,P17-P18,),7,25,40,15,8,125,52,5,(,14+6,),8=160,(,m,2,),(,14-6,),8=64,(,m,2,),答:这块花圃面积,160m,2,,郁金香比兰花多,64m,2,。,=80125+8125,=10000+1000,=11000,=256+2540,=150+1000,=1150,=,(,45+55,),17,=10017,=1700,=,(,13+27,),25,=4025,=1000,=8125-820,=1000-160,=840,=38,(,115-15,),=38100,=3800,(,65+35,),40=4000,(元),答:,40,套椅子要,4000,元。,60,120,88,100,10,110,100,140,32,78,80,16,=25404,=4000,=36,(,99+1,),=36100,=3600,=42,(,101-1,),=4200,=2540+254,=1000+100,=1100,=36,(,100-1,),=36100-36,=3564,=42,(,100+1,),=42100+42,=4242,=20015+415,=3000+60,=3060,=4258125,=1001000,=100000,=72,(,99+1,),=7200,=19020,=3800,=67,(,101-1,),=6700,=63,(,100-1,),=6300-63,=6237,=,=,3303-603,=270-180,=90,(元),答:可以赚,90,元。,999999+1999,=10001000,=1000000,
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