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  • 計算下面各題. 0.8÷2.5÷410.89-1.89÷0.541.08×2.4÷2.7    2.05÷8.2+3.64.5÷1.25×84.8×0.27+0.52×2.7.

    計算下面各題.
    0.8÷2.5÷410.89-1.89÷0.541.08×2.4÷2.7    
    2.05÷8.2+3.64.5÷1.25×84.8×0.27+0.52×2.7.
    數(shù)學(xué)人氣:212 ℃時間:2020-01-29 04:36:19
    優(yōu)質(zhì)解答
    (1)0.8÷2.5÷4
    =0.8÷(2.5×4)
    =0.8÷10
    =0.08;
    (2)10.89-1.89÷0.54
    =10.89-3.5
    =7.39;
    (3)1.08×2.4÷2.7
    =2.592÷2.7
    =0.96;
    (4)2.05÷8.2+3.6
    =0.25+3.6
    =3.85;
    (5)4.5÷1.25×8
    =3.6×8
    =28.8;
    (6)4.8×0.27+0.52×2.7
    =0.48×2.7+0.52×2.7
    =(0.48+0.52)×2.7
    =1×2.7
    =2.7.
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