用简便方法计算:1.25×67.875+1250×0.053375

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用简便方法计算:1.25×67.875+1250×0.053375

用简便方法计算:1.25×67.875+1250×0.053375
用简便方法计算:1.25×67.875+1250×0.053375

用简便方法计算:1.25×67.875+1250×0.053375
1.25×67.875+1250×0.053375
= 1.25x67.875 + 1.25x1000x0.053375
= 1.25 x 67.875 + 1.25 x 53.375
= 1.25 x( 67.875+53.375)
= 1.25 x 100
= 125