0.72x4.6+7.2x0.54,怎么简算?
4个回答
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0.72*4.6+7.2*0.54
=0.72*4.6+0.72*10*0.54
=0.72*(4.6+5.4)
=0.72*10
=7.2
=0.72*4.6+0.72*10*0.54
=0.72*(4.6+5.4)
=0.72*10
=7.2
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展开全部
=7.2/10x4.6+7.2x0.54
=7.2x0.46+7.2x0.54
=7.2x(0.54+0.46)
=7.2x1
=7.2
=7.2x0.46+7.2x0.54
=7.2x(0.54+0.46)
=7.2x1
=7.2
追答
=7.2/10x4.6+7.2x0.54
=7.2x0.46+7.2x0.54
=7.2x(0.54+0.46)
=7.2x1
=7.2
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展开全部
0.72x4.6+7.2x0.54
=0.72x4.6+0.72x10x0.54
=0.72x4.6+0.72x5.4
=0.72x(4.6+5.4)
=0.72x10
=7.2
=0.72x4.6+0.72x10x0.54
=0.72x4.6+0.72x5.4
=0.72x(4.6+5.4)
=0.72x10
=7.2
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