0.8*(7-5.75)*0.01的简便运算
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0.8*(7-5.75)*0.01的简便运算
0.8*(7-5.75)*0.01的简便运算
0.8*(7-5.75)*0.01的简便运算
0.8*(7-5.75)*0.01
=0.8*1.25*0.01
=1*0.01
=0.01
0.8*(7-5.75)*0.01
=0.8*1.25*0.01
=1*0.01
=0.01
化化成分数算
0.8=4/5
7-5.75=28/4-23/4=5/4
原式=4/5*5/4*0.01=0.01