请用简便方法计算二点零四乘以零点二五乘以七点二乘以十二点五

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请用简便方法计算二点零四乘以零点二五乘以七点二乘以十二点五请用简便方法计算二点零四乘以零点二五乘以七点二乘以十二点五请用简便方法计算二点零四乘以零点二五乘以七点二乘以十二点五2.04*0.25*7.2

请用简便方法计算二点零四乘以零点二五乘以七点二乘以十二点五
请用简便方法计算二点零四乘以零点二五乘以七点二乘以十二点五

请用简便方法计算二点零四乘以零点二五乘以七点二乘以十二点五
2.04*0.25*7.2*12.5
=0.51*(4*0.25)*9*(0.8*12.5)
=0.51*1*9*10
=45.9