www.qprq.net > 0.36x1.5╳0.4= 5.2ⅹ10.1= 用简算

0.36x1.5╳0.4= 5.2ⅹ10.1= 用简算

0.36×1.5×0.4 =0.36×(1.5×0.4) =0.36×0.6 =0.216 5.2×10.1 =5.2×10+5.2×0.1 =52+0.52 =52.52

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