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92÷4坚式计算

92÷4=23;

(1)92-14×5,=92-70,=22;(2)7×(44+38),=7×82,=574;(3)76×5÷4,=380÷4,=95;(4)24+62÷2,=24+31,=55.

19.92-9.92+14.4=10+14.4=24.4

69.6÷ 2.4 +17.92 =29+17.92 =46.92

92-37+25 =55+25 =80

3992-92×102÷23 =3992-9384÷23 =3992-408 =3584

92×[362-(354-27)] =92×[362-327] =92×35 =3220

(1)6.3÷(5.25×0.8)=6.3÷4.2=1.5;(2)20÷0.8-4÷0.8=25-5=20;(3)92.5×0.25×4 =92.5×(0.25×4)=92.5×1=92.5;(4)6.7×0.9+6.7×0.1=6.7×(0.9+0.1)=6.7×1=6.7.

根据商务原理,计算百分点有两个不同基数:1.以成本为基础如下,105-92=13/92=14.13%为百分之14.13 2.以售价为基础,105-92=13/105=12.38% 为百分之12.38; 桶子的1.成本基础式子:(105x4)-(92x4)=52-25=27/(92x4)=7.33% 为百分之7.33 以售价为基础...

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