2007×0.999-2008×0.998简便计算

zhenuo_pp2022-10-04 11:39:543条回答

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hotdog_chen 共回答了19个问题 | 采纳率94.7%: =2007×0.999-2007×0.998-0.998
=2007×(0.999-0.998)-0.998
=2.007-(1-0.002)
=2.007-1+0.002
=1.009; 1年前

huohua85 共回答了6478个问题 | 采纳率: 2007×0.999-2008×0.998
=2007×0.999-2008×0.999+2008×0.001
=0.999×(2007-2008)+2.008
=0.999×(-1)+2008
=2.008-0.999
=1.009; 1年前

ym8928011 共回答了3652个问题 | 采纳率: 2007×0.999-2008×0.998
=2007*0.999-(2007+1)*0.998
=2007*0.999-2007*0.998-0.998
=2007*(0.999-0.998)-0.998
=2007*0.001-0.998
=2.007-0.998
=1.009; 1年前

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