Those who spend time outdoors, even on traditional sports like hunting and fishing, spend a lot more time dealing with numbers than one might think. The sports require one to develop a certain reasoning ability with numerical values and concepts of scale.
Consider the sport of fishing. It requires, among other things, fishing line. And a successful angler needs to have a pretty good idea how strong 4-pound test line is, and what it’s like to cast with or tie knots with, and what the differences are between 4-, 8-, 12-, and 20-pound test.