7.8*0.125怎么简算?
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7.8*0.125怎么简算?7.8*0.125怎么简算?7.8*0.125怎么简算?7.8*0.125=(8-0.2)x0.125=8x0.125-0.2x0.125=1-0.025=0.9757.8
7.8*0.125怎么简算?
7.8*0.125怎么简算?
7.8*0.125怎么简算?
7.8*0.125
=(8-0.2)x0.125
=8x0.125-0.2x0.125
=1-0.025
=0.975
7.8*0.125=(78/10)*(1/8)=39/40