3.72×53+6.44×47+27.2×5.3简便计算?
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=3.72×53+2.72×53+6.44×47
=(3.72+2.72)×53+6.44×47
=6.44×53+6.44×47
=6.44x(53+47)
=6.44×100
=644
=(3.72+2.72)×53+6.44×47
=6.44×53+6.44×47
=6.44x(53+47)
=6.44×100
=644
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简便计算方法,小数点移动找到共项,再合并同类项。
3.72×53+6.44×47+27.2×5.3
=3.72×53+6.44×47+2.72×53
=(3.72+2.72)×53+6.44×47
=6.44×53+6.44×47
=6.44×(53+47)
=644
3.72×53+6.44×47+27.2×5.3
=3.72×53+6.44×47+2.72×53
=(3.72+2.72)×53+6.44×47
=6.44×53+6.44×47
=6.44×(53+47)
=644
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3.72×53+6.44×47+27.2×5.3简便计算,可以变为(3.72+2.72)*53+6.44*47=6.44*100=644.
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2021-12-22 · 知道合伙人教育行家
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简便计算结果为644。
因为3.72*53+6.44*47+27.2*5.3
=3.72*53+2.72*53+6.44*47
=(3.72+2.72)*53+6.44*47
=6.44*53+6.44*47
=6.44*100
=644
因为3.72*53+6.44*47+27.2*5.3
=3.72*53+2.72*53+6.44*47
=(3.72+2.72)*53+6.44*47
=6.44*53+6.44*47
=6.44*100
=644
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