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17.5÷1.25÷0.08脱式计算

17.5÷1.25÷0.08脱式计算 =17.5÷(1.25x0.08) =17.5÷0.1 =175

=6.89÷(1.25X0.08) =6.89÷0.1 =68.9 望采纳

(1)17.4÷0.8÷1.25,=17.4÷(0.8×1.25),=17.4÷1,=17.4;(2)1.8÷0.2÷0.3,=1.8÷(0.2×0.3),=1.8÷0.06,=30;(3)24÷O.6+0.6÷24,=40+0.025,=40.025;(4)17.94÷3.9+5.3×0.4,=4.6+0.12,=4.72.

3.84 解析: 4.8÷1.25 =9.6÷2.5 =19.2÷5 =38.4÷10 =3.84

供参考

1.25×0.8+0.2÷1,25 =1+0.16 =1.16。

2.89÷1.25×0.08=2.89×0.08÷1.25=0.185。

①1.258×18.5-0.258×18.5,=18.5×(1.258-0.258),=18.5×1,=18.5;②8.48÷0.8×0.9,=10.6×0.9,=9.54;③1.25×2.4,=1.25×8×0.3,=10×0.3,=3;④5.85÷(1.3+0.5)×6,=5.85÷1.8×6,=3.25×6,=19.5.

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