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0.45x7.5%0.45x6.5的简便计算

0.45x7.5-0.45x6.5 =0.45x(7.5-6.5) =0.45x1 =0.45

0.45×7.5-0.35×6.5 =0.45×(1+6.5)-0.35×6.5 =0.45×1

4.5x0.75-0.45x6.5 =4.5x(0.75-0.1x6.5) =4.5x(0.75

0.45-0.6×0.5 =(0.9-0.6)×0.5 =0.3×0.5 =0.15 你好,本题已解

3.8x0.45+0.38x6.5-0.038x10简便算法 =3.8x(0.45+0.65-

0.45÷0.6÷0.5 =0.45÷(0.6×0.5) =0.45÷0.3 =1.5

3.8×0.45+0.38×6.5-0.038×10 =3.8×0.45+3.8×0.65-3.8×

4.5*0.75-0.45*6.5用检便方法计算 4.5*0.75-0.45*6.5 =4.

0.45×7.5-0.35×6.5算 =0.45*(6.5+1)-0.35*6.5 =0.45*6.

0.45x-4.5×6=45 0.45x-27=45 0.45x=45+27 0.45x=72

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