4.69×3.3+0.469×6.64+0.469简便运算?
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4.69×3.3+0.469×6.64+0.469
=4.69×3.3+4.69×0.664+4.69×0.1
=4.69×(3.3+0.664+0.1)
=4.69×4.064
=19.06016
=4.69×3.3+4.69×0.664+4.69×0.1
=4.69×(3.3+0.664+0.1)
=4.69×4.064
=19.06016
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