5.3×1.2+0.53×45+53×0.63的简便方法怎么做?
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5.3×1.2+0.53×45+53×0.63
=5.3×1.2+5.3×4.5+5.3×6.3
=5.3×(1.2+4.5+6.3)
=5.3×12
=5.3×10+5.3×2
=53+10.6
=63.6
=5.3×1.2+5.3×4.5+5.3×6.3
=5.3×(1.2+4.5+6.3)
=5.3×12
=5.3×10+5.3×2
=53+10.6
=63.6
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展开全部
5.3×1.2+0.53×45+53×0.63
=5.3×1.2+5.3×4.5+5.3×6.3
=5.3×(1.2+4.5×6.3)
=5.3×12
=63.6
=5.3×1.2+5.3×4.5+5.3×6.3
=5.3×(1.2+4.5×6.3)
=5.3×12
=63.6
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