9.75*0.84怎么简便计算?
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9.75*0.84怎么简便计算?9.75*0.84怎么简便计算?9.75*0.84怎么简便计算?9.75*0.84=(10-0.25)*0.84=(10-1/4)*0.84=8.40-0.21=8.1
9.75*0.84怎么简便计算?
9.75*0.84怎么简便计算?
9.75*0.84怎么简便计算?
9.75*0.84
=(10-0.25)*0.84
=(10-1/4)*0.84
=8.40-0.21
=8.19
9.75*0.84
＝（10-0.25）*0.84
＝10*0.84-0.25*4*0.21
＝8.4-1*0.21
＝8.4-0.21
＝8.19
9.75*0.84
=(10-0.25)*0.84
=10*0.84-(1/4)*0.84
=8.4-0.21
=8.19