4.8+5.7= 4.36+1.64= 9-2.5=
10-0.36= 2.39+1.25= 5.38-4.28=
0.36+0.47= 0.91-0.38= 2.4+3.6-1.2=
4.5-1.2+0.4= 7.25+1.73+2.75= 10-0.15-0.85=