3.17x45.6+38.3x5.44简便计算
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=3.17×45.6+3.83×54.4
=3.17×(100-54.4)+3.83×54.4
=317-3.17×54.4+3.83×54.4
=317+54.4(3.83-3.17)
=317+54.4×0.66
=352.904
=3.17×(100-54.4)+3.83×54.4
=317-3.17×54.4+3.83×54.4
=317+54.4(3.83-3.17)
=317+54.4×0.66
=352.904
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