0.7+0.3=1 7.2+1.8=9 0.24+0.76=1 9.5-2.5=7
1.8-0.3=1.5 1-0.25=0.75 0.47-0.4=0.07 8.83-8=0.83
故答案为:1,9,1,7,1.5,0.75,0.07,0.83.