用簡(jiǎn)便方法計(jì)算:18*25、35*18、250*24、65*14、125*96、45*36.
用簡(jiǎn)便方法計(jì)算:18*25、35*18、250*24、65*14、125*96、45*36.
數(shù)學(xué)人氣:308 ℃時(shí)間:2020-08-27 14:37:00
優(yōu)質(zhì)解答
18*25=(9*2)*25=9*(2*25)=9*50=45035*18=35*(2*9)=(35*2)*9=70*9=630250*24=250*(4*6)=(250*4)*6=1000*6=600065*14=65*(2*7)=(65*2)*7=130*7=910125*96=125*(8*12)=(125*8)*12=1000*12=1200045*...
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