如题所述
3.2ä¹0.48å 0.48ä¹4.9å 8.1ä¹0.52çç®ä¾¿è¿ç®
=ï¼3.2+4.9ï¼x0.48+8.1x0.52
=8.1x0.48+8.1x0.52
=8.1x(0.48+0.52)
=8.1x1
=8.1
=ï¼3.2+4.9ï¼x0.48+8.1x0.52
=8.1x0.48+8.1x0.52
=8.1x(0.48+0.52)
=8.1x1
=8.1
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第1个回答 2018-09-28
48.4÷0.8×1.2的简便运算怎么写解：原式=60.5x1.2 =60.5x（1+0.2） =60.5x1+60.5x0.2 =60.5+12.1 =72.6
