5.3×4.6+4.6×4.6+0.46的简便方法?
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5.3×4.6+4.6×4.6+0.46
=5.3×4.6+4.6×4.6+4.6×0.1
=4.6×(5.3+4.6+0.1)
=4.6×10
=46
=5.3×4.6+4.6×4.6+4.6×0.1
=4.6×(5.3+4.6+0.1)
=4.6×10
=46
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