0.6x0.3十(0.6x0.3十0.3x0.3)X2,用简便方法计算?
3个回答
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0.6×0.3+(0.6×0.3+0.3×0.3)×2
=0.6×0.3+0.6×0.3×2+0.3×0.3×2
=0.6×0.3+0.6×(0.3×2)+0.3×(0.3×2)
=0.6×0.3+0.6×0.6+0.6×0.3
=0.6×(0.3+0.6+0.3)
=0.6×1.2
=0.72
=0.6×0.3+0.6×0.3×2+0.3×0.3×2
=0.6×0.3+0.6×(0.3×2)+0.3×(0.3×2)
=0.6×0.3+0.6×0.6+0.6×0.3
=0.6×(0.3+0.6+0.3)
=0.6×1.2
=0.72
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展开全部
0.6*0.3+0.6*0.3*2+0.3*0.3*2
=0.6*(0.3+0.6+0.3)
=0.6*1.2
=0.72
=0.6*(0.3+0.6+0.3)
=0.6*1.2
=0.72
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