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6.25除以1.25除零点八怎么样简便计算

6.25÷1.25÷0.8 =6.25÷(1.25×0.8) =6.25÷1 =6.25

6.25÷0.8 =62.5÷8 =7.81 竖式见图:

6.25×0.56+5/8×3.4+5×1/8 =0.625×5.6+0.625×3.4+0.62...

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