4.5*3.6+5.5*0.34
=4.5*3.6+0.55*3.4
=4.5*3.6+0.5*3.4+0.05*3.4
=4.5*3.6+0.5*3.6-0.5*0.2+0.5*0.34
=5*3.6+0.5(0.34-0.2)
=10*1.8+0.5*0.14
=18+1*0.07
=18.07
用遞等式如何計(jì)算4.5*3.6+5.5*0.34,
用遞等式如何計(jì)算4.5*3.6+5.5*0.34,
數(shù)學(xué)人氣：947 ℃時(shí)間：2020-01-25 08:05:00
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