34.8*6.3+473*0.37+13*5.25怎简便做
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34.8*6.3+473*0.37+13*5.25怎简便做
34.8*6.3+473*0.37+13*5.25怎简便做
34.8*6.3+473*0.37+13*5.25怎简便做
34.8*6.3+473*0.37+13*1.25
=34.8*6.3+47.3*3.7+13*1.25
=34.8*6.3+34.8*3.7+12.5*3.7+1.3*12.5
=34.8*(6.3+3.7)+12.5*(3.7+1.3)
=34.8*10+12.5*5
=348+62.5
=410.5
赞同楼上
34.8*6.3+473*0.37+13*5.25
=34.8*6.3+47.3*3.7+13*1.25+13*4
=34.8*6.3+34.8*3.7+12.5*3.7+1.3*12.5+52
=34.8*(6.3+3.7)+12.5*(3.7+1.3)+52
=34.8*10+12.5*5+52
=348+62.5+52
=348+52+62.5
=400+62.5
=462.5
34.8*6.3+473*0.37+13*5.25怎简便做
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