简便计算:3.6X7.2十5.3X7.2+11X0.72=(3.6十5.3十1.1)X7.2=10X7.2=72脱式计算:3.6X7.2十5.3X7.2十11X0.72=25.92+5.3X7.2+11X0.72=25.92+38.16+11X0.72=25.92+38.16+7.92=72