Subtracting 8.263 from 13.48 you obtain
13.48 is actually 13.480: let's start from the right side: 13.480 -8.263=???7and the rest:13.47 -8.26=??17and the rest:13.4 -8.2=?.217and the rest:13. -8.=5.217So the answer is :5.217