1.2+ 1.5=2.7 , 1.3+ 1.5=2.8, 0.2+ 1.2= 1.4, 1.3+ 1.08=2.38 ,5.5+2. 1=7.6 , 7.8+ 1.9=9.7 , 1.02+ 1.03=2.05, 1.2+ 1.5=2.7, 1.5+ 1.7=3.2, 1.3+ 1.5=2.8 , 0.2+ 1.2= 1.4, 1.3+ 1.08=2.38 ,5.5+2. 1=7.6 ,7.8+ 1.9=9.7, 1.02+ 1.03=2.05 , 1.3+ 1.6=2.9 , 7. 1+7. 1= 14.2 ,2.03+2.03=4.06,5.7-3= 2.7 ,4.9- 1.7= 3.2, 3.4- 1.4=2, 8. 1-5. 1= 3 ,0.78-0.24=0.54, 0.89-0.25=0.64 , 1-0.98=0.02 , 1-0.8= 0.2 ,4.5-4=0.5, 5.7+3.3= 9, 10-4.4=5.6 , 9.5-2.7=6.8, 1-0.55= 0.45 , 1-0.44=0.56, 14.6-0.4= 14.2, 10-0. 1= 9.9, 5-0.08= 4.92, 1. 1- 1=0. 1, 8.34-6.22=27.78 ,9.3-8.8=0.5 , 19.8-5.6= 14.2 ,96.3-56.2 =40. 1 , 88-69.2 1= 18.79, 1-0.3=0.7, 136.5- 105=3 1.5, 93. 1-20.9=72.2 , 63. 1- 1 1=52. 1,8.7÷0.29= 30,0.04×25= 1 , 1.25×0.8= 2,8.5÷5= 1.7,7÷0.5= 14, 1÷4=0.25,6.3× 10 1= 636.3, 1.8÷0.9=2,0.9×6= 5.4