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1个回答
展开全部
3.7*0.6+5.3*0.6*63的简便计算
解:采用分配律,
原式=3.7*0.6+5.3*0.6x63
=0.6x(3.7+5.3x63)
=0.6x(3.7+5.3+62x5.3)
=0.6x(9+390.6)
=5.4+0.6x390.6
=5.4+234.36
=239.76
解:采用分配律,
原式=3.7*0.6+5.3*0.6x63
=0.6x(3.7+5.3x63)
=0.6x(3.7+5.3+62x5.3)
=0.6x(9+390.6)
=5.4+0.6x390.6
=5.4+234.36
=239.76
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