问题标题:
3.82×9.9+0.382用简便方法计算
问题描述:

3.82×9.9+0.382用简便方法计算

李佐回答:
  幻の小希希,你好:   3.82×9.9+0.382   =3.82×9.9+3.82×0.1   =3.82×(9.9+0.1)   =3.82×10   =38.2
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