2007×0.999-2008×0.998简便计算

来源：学生作业帮助网编辑：作业帮时间：2024/05/05 06:33:16

=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

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

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

2007×0.999-2008×0.998简便计算 0.9+0.99+0.999+0.9999 简便运算：0.9+0.99+0.999+``+0.99```9 0.9+0.99+0.999+0.9999简算 0.9+0.99+0.999+.+0.999999999= 0.9+0.99+0.999+.0.999999999=? 0.9+0.99+0.999+.+0.999999999=? 0.9+0.99+0.999怎么简算 0.9+0.99+0.999用简便方法计算 0.9+0.99+0.999+0.9999怎么简便计算 0.9+0.99+0.999+简便方法计算用简便方法计算：0.9+0.99+0.999 0.9+0.99+0.999+0.9999简便计算 0.9+0.99+0.999+0.9999怎么巧算 9+0.9+0.99+0.999+0.9999简便计算 o.9+0.99+0.999+.+0.999999999 简便计算 1.9+0.99+0.999+.+0.999999999+0.9999999999=多少? 0.9,0.99,0.999.这类小数越来越接近