I'd wager most people are using their reading skills and basic mathematical skills, on a daily basis.
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Does geometry and physics count? Physics is used almost daily by most adults, whether they know it or not. Driving a car involves a lot of physics (although people may not be aware of it). Merging properly, backing into a spot, timing a yellow light; all involve some basic sort of knowledge of time and speed. Geometry as well. Playing pool, billiards, mini golf all require an understanding of geometry.