把下面小数化成分数0.6= 0.7= 0.125=
2011÷125．
简便计算 375﹣98 500﹣56﹣44 89+233+511+377+567+123．
①1993+1994+1995+1996+1997+1998+1999+2000= ②（0.75×42.7+57.3﹣0.573×25）÷3×7972=
计算． 0.25×0.03×413×3.89+0.13×100+1.3×51.110.1×87．
63×．
．
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