19.8-6.4=4+7.6=6.2-6.2=6+2.1=0.5+1.8=0+2.9=11+0.1=16.9-1.6=1-0.1=14.8+2.6=5+2.7=0+1.6=16.3-6.3=4-0.1=14+5.5=13+3.3=11+5.7=8-0.3=19...
