84/12.5怎样巧算
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84/12.5怎样巧算
84/12.5怎样巧算
84/12.5怎样巧算
84/12.5
=(84*8)/(12.5*8)
=672/100
=6.72
84/12.5
=10.5*8*12.5
=10.5*100
=1050
84/12.5
=(84*2):(12.5*2)
=168/25
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