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20%0.3竖式怎么做列竖式计算

20-0.3=19.7,竖式如下:

亲,满意就采纳吧

1、从被除数的高位除起, 2、除到哪一位,就把商写在那一位上面 3、每次除得的余数一定要比除数小

(25-20)÷20×100%=25% (0.6-0.3)÷0.6×100%=50% 答:25比20多百分之二十五。0.3公顷比0.6公顷少百分之五十。

(30+20%)÷2 12×3÷(25+20%) 30÷(3+40%) 27÷8×16×10% (43×20%)+【3×(1÷9)】 14×15%+25×8×(1÷4) 19.8÷(1+10%) 19.8÷(1-10%) 20÷(1-20%) 20×(1-25%) 20÷(1+20%) 20×(1+25%) 60÷(30%-25%) 120×(1-25%-40%) 605×8+3.5-44+10.9-(6.6+0.125÷12.5%) (0.75...

3.解方程: 19-120%x=7 19-1.2x=7 1.2x=12 x=10 30%x+0.5x=2.4 0.8x=2.4 x=3 x-60%x=0.16 0.4x=0.16 x=0.4 (1-20%)x=0.32 0.8x=0.32 x=0.4 4.计算: (1-1/2×3/4)÷75% =(1-3/8)×4/3 =5/8×4/3 =5/6 63.5×25%+0.25×36.5 =63.5×0.25+0.25×36.5 =0.25...

3.31-20.3÷7×0.5 =3.31-2.9×0.5 =3.31-1.45 =1.86

20÷(16.35+3.05) =20÷19.4 =200/194 =100/97

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