53点五乘35点三加53点五乘43点二加78.5加46.5用简便计算怎么算
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原式
=53.5x35.3+53.5x43.2+78.5+46.5
=53.5x(35.3+43.2)+78.5+46.5
=53.5x78.5+78.5+46.5
=78.5x(53.5+1)+46.5
=78.5x54.5+46.5
=4278.25+46.5
=4324.75
=53.5x35.3+53.5x43.2+78.5+46.5
=53.5x(35.3+43.2)+78.5+46.5
=53.5x78.5+78.5+46.5
=78.5x(53.5+1)+46.5
=78.5x54.5+46.5
=4278.25+46.5
=4324.75
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