9.07-22.78÷3.4 =9.07-6.7 =2.37 1.05÷0.7+18.9 =1.5+18.9 =20.4 21.5÷0.05×0.96 =430×0.96 =412.8 12.6÷0.28-4.5 =45-4.5 =40.5 1.53+23.4÷7.2 =1.53+3.25 =4.78
