简便运算:47.85÷6.38×0.638
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简便运算:47.85÷6.38×0.638简便运算:47.85÷6.38×0.638简便运算:47.85÷6.38×0.638原式=4.785÷0.638×0.638=4.785×(0.638÷0.6
简便运算:47.85÷6.38×0.638
简便运算:47.85÷6.38×0.638
简便运算:47.85÷6.38×0.638
原式
=4.785÷0.638×0.638
=4.785×(0.638÷0.638)
=4.875×1
=4.875
用0.638除以6.38得0.1
再用0.1乘47.85得最后结果 4.785