2007×0.999-2008×0.998简便计算
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2007×0.999-2008×0.998简便计算2007×0.999-2008×0.998简便计算2007×0.999-2008×0.998简便计算=2007×0.999-2007×0.998-0.
2007×0.999-2008×0.998简便计算
2007×0.999-2008×0.998简便计算
2007×0.999-2008×0.998简便计算
=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=?
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