高考问答网络举报赌博:谁来做做?
来源：百度文库 编辑：高考问答 时间：2024/04/30 06:22:00
9.8*65.2*1.25-12.5*0.652*18
要简便算法!!!!!!!!
急!!!!!!!!
要简便算法!!!!!!!!
急!!!!!!!!
9.8*65.2*1.25-12.5*0.652*18
＝98*6.52*1.25－1.25*6.52*18
＝1.25*6.52*（98-18）
＝1.25*6.52*80
＝1.25*80*6.52
＝100*6.52
＝652
计算器
9.8*65.2*1.25-12.5*0.652*18
=65.2*1.25[9.8-10*0.01*18]
=65.2*1.25*8
=65.2*10
=652
9.8*65.2*1.25-12.5*0.652*18
=0.98*65.2*12.5-12.5*65.2*0.18
=65.2*12.5*(0.98-0.18)
=65.2*12.5*0.8
=65.2*10
=652
9.8*65.2*1.25-12.5*0.652*18
=9.8*6.52*12.5-12.5*6.52*1.8
=6.52*12.5*(9.8-1.8)
=6.52*12.5*8
=6.52*(12.5*8)
=6.52*100
=652
=(9.8*6.52-18*0.652)*12.5
={6.52*(9.8-1.8)}*12.5
=6.52*8*12.5
=6.52*100
=652