0.2乘0.7乘50怎么简便计算？
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0.2乘0.7乘50
=0.2×50×0.7
=10×0.7
=7,5,0.2先宴枝简乘50=10
10再乘0.7=7,2,0.2乘0.7乘50
=0.2乘搭粗50乘0.7
=10乘0.7
=7,2,0.2*50*0.7=10*0.7=7,1,2 X 7 ÷ 100 X 50 = 1.4 X 5 = 7,1,0.2先乘晌裤50得10，再乘0.7得7,1,0.2*50=10
10*0.7=7,0,
=0.2×50×0.7
=10×0.7
=7,5,0.2先宴枝简乘50=10
10再乘0.7=7,2,0.2乘0.7乘50
=0.2乘搭粗50乘0.7
=10乘0.7
=7,2,0.2*50*0.7=10*0.7=7,1,2 X 7 ÷ 100 X 50 = 1.4 X 5 = 7,1,0.2先乘晌裤50得10，再乘0.7得7,1,0.2*50=10
10*0.7=7,0,
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